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Finding the Fourth Proportional to 16,290,494.40, 24,414,746.40 and 12,485,114.40

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Solution

The fourth proportional to 16,290,494.40, 24,414,746.40 and 12,485,114.40 is: 18,711,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290,494.40 : 24,414,746.40 = 12,485,114.40 : x
  2. Step 2: Convert to fraction form
    16,290,494.40/24,414,746.40 = 12,485,114.40/x
  3. Step 3: Cross multiply
    16,290,494.40x = 24,414,746.40 × 12,485,114.40
  4. Step 4: Simplify right side
    16,290,494.40x = 304,820,901,850,988.12
  5. Step 5: Solve for x
    x = 304,820,901,850,988.12/16,290,494.40
  6. Step 6: Final answer
    x = 18,711,580.78

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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.