Home / 787,968,139.70-1,181,952,209.55-777,218,597.30

Finding the Fourth Proportional to 787,968,139.70, 1,181,952,209.55 and 777,218,597.30

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Solution

The fourth proportional to 787,968,139.70, 1,181,952,209.55 and 777,218,597.30 is: 1,165,827,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,139.70 : 1,181,952,209.55 = 777,218,597.30 : x
  2. Step 2: Convert to fraction form
    787,968,139.70/1,181,952,209.55 = 777,218,597.30/x
  3. Step 3: Cross multiply
    787,968,139.70x = 1,181,952,209.55 × 777,218,597.30
  4. Step 4: Simplify right side
    787,968,139.70x = 918,635,238,382,086,528
  5. Step 5: Solve for x
    x = 918,635,238,382,086,528/787,968,139.70
  6. Step 6: Final answer
    x = 1,165,827,895.95

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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.