Home / 12,387,629.40-18,581,444.10-11,590,467.90

Finding the Fourth Proportional to 12,387,629.40, 18,581,444.10 and 11,590,467.90

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Solution

The fourth proportional to 12,387,629.40, 18,581,444.10 and 11,590,467.90 is: 17,385,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,629.40 : 18,581,444.10 = 11,590,467.90 : x
  2. Step 2: Convert to fraction form
    12,387,629.40/18,581,444.10 = 11,590,467.90/x
  3. Step 3: Cross multiply
    12,387,629.40x = 18,581,444.10 × 11,590,467.90
  4. Step 4: Simplify right side
    12,387,629.40x = 215,367,631,376,694.41
  5. Step 5: Solve for x
    x = 215,367,631,376,694.41/12,387,629.40
  6. Step 6: Final answer
    x = 17,385,701.85

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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.