Home / 1,259,713,087.20-1,889,569,630.80-441,530,143.20

Finding the Fourth Proportional to 1,259,713,087.20, 1,889,569,630.80 and 441,530,143.20

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Solution

The fourth proportional to 1,259,713,087.20, 1,889,569,630.80 and 441,530,143.20 is: 662,295,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,087.20 : 1,889,569,630.80 = 441,530,143.20 : x
  2. Step 2: Convert to fraction form
    1,259,713,087.20/1,889,569,630.80 = 441,530,143.20/x
  3. Step 3: Cross multiply
    1,259,713,087.20x = 1,889,569,630.80 × 441,530,143.20
  4. Step 4: Simplify right side
    1,259,713,087.20x = 834,301,949,673,495,040
  5. Step 5: Solve for x
    x = 834,301,949,673,495,040/1,259,713,087.20
  6. Step 6: Final answer
    x = 662,295,214.80

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Half scale
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Double scale
Find fourth proportional to 1,259,713,088.20, 1,889,569,632.30 and 441,530,144.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.