Home / 1,261,335,694.55-1,728,001,015.55-1,214,176,888.67

Finding the Fourth Proportional to 1,261,335,694.55, 1,728,001,015.55 and 1,214,176,888.67

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Solution

The fourth proportional to 1,261,335,694.55, 1,728,001,015.55 and 1,214,176,888.67 is: 1,663,394,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,335,694.55 : 1,728,001,015.55 = 1,214,176,888.67 : x
  2. Step 2: Convert to fraction form
    1,261,335,694.55/1,728,001,015.55 = 1,214,176,888.67/x
  3. Step 3: Cross multiply
    1,261,335,694.55x = 1,728,001,015.55 × 1,214,176,888.67
  4. Step 4: Simplify right side
    1,261,335,694.55x = 2,098,098,896,679,099,392
  5. Step 5: Solve for x
    x = 2,098,098,896,679,099,392/1,261,335,694.55
  6. Step 6: Final answer
    x = 1,663,394,531.48

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Half scale
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Double scale
Find fourth proportional to 1,261,335,695.55, 1,728,001,016.92 and 1,214,176,889.67
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.