Home / 726,764,815.70-1,090,147,223.55-670,644,646.10

Finding the Fourth Proportional to 726,764,815.70, 1,090,147,223.55 and 670,644,646.10

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Solution

The fourth proportional to 726,764,815.70, 1,090,147,223.55 and 670,644,646.10 is: 1,005,966,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,764,815.70 : 1,090,147,223.55 = 670,644,646.10 : x
  2. Step 2: Convert to fraction form
    726,764,815.70/1,090,147,223.55 = 670,644,646.10/x
  3. Step 3: Cross multiply
    726,764,815.70x = 1,090,147,223.55 × 670,644,646.10
  4. Step 4: Simplify right side
    726,764,815.70x = 731,101,398,934,587,392
  5. Step 5: Solve for x
    x = 731,101,398,934,587,392/726,764,815.70
  6. Step 6: Final answer
    x = 1,005,966,969.15

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Double scale
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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.