Home / 20,775,403.40-31,172,436.30-9,410,001.80

Finding the Fourth Proportional to 20,775,403.40, 31,172,436.30 and 9,410,001.80

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Solution

The fourth proportional to 20,775,403.40, 31,172,436.30 and 9,410,001.80 is: 14,119,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,403.40 : 31,172,436.30 = 9,410,001.80 : x
  2. Step 2: Convert to fraction form
    20,775,403.40/31,172,436.30 = 9,410,001.80/x
  3. Step 3: Cross multiply
    20,775,403.40x = 31,172,436.30 × 9,410,001.80
  4. Step 4: Simplify right side
    20,775,403.40x = 293,332,681,693,385.38
  5. Step 5: Solve for x
    x = 293,332,681,693,385.38/20,775,403.40
  6. Step 6: Final answer
    x = 14,119,229.17

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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.