Home / 42,016,006.40-63,024,009.60-20,738,105.60

Finding the Fourth Proportional to 42,016,006.40, 63,024,009.60 and 20,738,105.60

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Solution

The fourth proportional to 42,016,006.40, 63,024,009.60 and 20,738,105.60 is: 31,107,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,016,006.40 : 63,024,009.60 = 20,738,105.60 : x
  2. Step 2: Convert to fraction form
    42,016,006.40/63,024,009.60 = 20,738,105.60/x
  3. Step 3: Cross multiply
    42,016,006.40x = 63,024,009.60 × 20,738,105.60
  4. Step 4: Simplify right side
    42,016,006.40x = 1,306,998,566,420,214
  5. Step 5: Solve for x
    x = 1,306,998,566,420,214/42,016,006.40
  6. Step 6: Final answer
    x = 31,107,158.40

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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.