Home / 521,881,674.77-720,154,115.88-307,266,444.02

Finding the Fourth Proportional to 521,881,674.77, 720,154,115.88 and 307,266,444.02

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Solution

The fourth proportional to 521,881,674.77, 720,154,115.88 and 307,266,444.02 is: 424,002,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,881,674.77 : 720,154,115.88 = 307,266,444.02 : x
  2. Step 2: Convert to fraction form
    521,881,674.77/720,154,115.88 = 307,266,444.02/x
  3. Step 3: Cross multiply
    521,881,674.77x = 720,154,115.88 × 307,266,444.02
  4. Step 4: Simplify right side
    521,881,674.77x = 221,279,194,332,814,592
  5. Step 5: Solve for x
    x = 221,279,194,332,814,592/521,881,674.77
  6. Step 6: Final answer
    x = 424,002,614.06

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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.