Home / 418,732,508.90-628,166,936.45-123,657,475.52

Finding the Fourth Proportional to 418,732,508.90, 628,166,936.45 and 123,657,475.52

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Solution

The fourth proportional to 418,732,508.90, 628,166,936.45 and 123,657,475.52 is: 185,506,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,732,508.90 : 628,166,936.45 = 123,657,475.52 : x
  2. Step 2: Convert to fraction form
    418,732,508.90/628,166,936.45 = 123,657,475.52/x
  3. Step 3: Cross multiply
    418,732,508.90x = 628,166,936.45 × 123,657,475.52
  4. Step 4: Simplify right side
    418,732,508.90x = 77,677,537,563,707,584
  5. Step 5: Solve for x
    x = 77,677,537,563,707,584/418,732,508.90
  6. Step 6: Final answer
    x = 185,506,345.73

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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.