Home / 1,216,093,911.96-1,678,164,638.40-659,165,001.60

Finding the Fourth Proportional to 1,216,093,911.96, 1,678,164,638.40 and 659,165,001.60

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Solution

The fourth proportional to 1,216,093,911.96, 1,678,164,638.40 and 659,165,001.60 is: 909,623,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,093,911.96 : 1,678,164,638.40 = 659,165,001.60 : x
  2. Step 2: Convert to fraction form
    1,216,093,911.96/1,678,164,638.40 = 659,165,001.60/x
  3. Step 3: Cross multiply
    1,216,093,911.96x = 1,678,164,638.40 × 659,165,001.60
  4. Step 4: Simplify right side
    1,216,093,911.96x = 1,106,187,396,555,999,488
  5. Step 5: Solve for x
    x = 1,106,187,396,555,999,488/1,216,093,911.96
  6. Step 6: Final answer
    x = 909,623,332.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.