Home / 12,387,864.30-18,581,796.45-12,175,287.90

Finding the Fourth Proportional to 12,387,864.30, 18,581,796.45 and 12,175,287.90

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Solution

The fourth proportional to 12,387,864.30, 18,581,796.45 and 12,175,287.90 is: 18,262,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,864.30 : 18,581,796.45 = 12,175,287.90 : x
  2. Step 2: Convert to fraction form
    12,387,864.30/18,581,796.45 = 12,175,287.90/x
  3. Step 3: Cross multiply
    12,387,864.30x = 18,581,796.45 × 12,175,287.90
  4. Step 4: Simplify right side
    12,387,864.30x = 226,238,721,477,947.94
  5. Step 5: Solve for x
    x = 226,238,721,477,947.94/12,387,864.30
  6. Step 6: Final answer
    x = 18,262,931.85

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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.