Home / 1,251,764,159.16-1,727,483,121.24-687,272,834.13

Finding the Fourth Proportional to 1,251,764,159.16, 1,727,483,121.24 and 687,272,834.13

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Solution

The fourth proportional to 1,251,764,159.16, 1,727,483,121.24 and 687,272,834.13 is: 948,463,184.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,764,159.16 : 1,727,483,121.24 = 687,272,834.13 : x
  2. Step 2: Convert to fraction form
    1,251,764,159.16/1,727,483,121.24 = 687,272,834.13/x
  3. Step 3: Cross multiply
    1,251,764,159.16x = 1,727,483,121.24 × 687,272,834.13
  4. Step 4: Simplify right side
    1,251,764,159.16x = 1,187,252,220,646,353,152
  5. Step 5: Solve for x
    x = 1,187,252,220,646,353,152/1,251,764,159.16
  6. Step 6: Final answer
    x = 948,463,184.51

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Double scale
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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.