Home / 457,541,708.81-686,403,892.31-239,290,306.25

Finding the Fourth Proportional to 457,541,708.81, 686,403,892.31 and 239,290,306.25

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Solution

The fourth proportional to 457,541,708.81, 686,403,892.31 and 239,290,306.25 is: 358,983,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,541,708.81 : 686,403,892.31 = 239,290,306.25 : x
  2. Step 2: Convert to fraction form
    457,541,708.81/686,403,892.31 = 239,290,306.25/x
  3. Step 3: Cross multiply
    457,541,708.81x = 686,403,892.31 × 239,290,306.25
  4. Step 4: Simplify right side
    457,541,708.81x = 164,249,797,597,423,424
  5. Step 5: Solve for x
    x = 164,249,797,597,423,424/457,541,708.81
  6. Step 6: Final answer
    x = 358,983,223.69

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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.