Home / 42,732,003.80-64,098,005.70-20,057,187.80

Finding the Fourth Proportional to 42,732,003.80, 64,098,005.70 and 20,057,187.80

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Solution

The fourth proportional to 42,732,003.80, 64,098,005.70 and 20,057,187.80 is: 30,085,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,732,003.80 : 64,098,005.70 = 20,057,187.80 : x
  2. Step 2: Convert to fraction form
    42,732,003.80/64,098,005.70 = 20,057,187.80/x
  3. Step 3: Cross multiply
    42,732,003.80x = 64,098,005.70 × 20,057,187.80
  4. Step 4: Simplify right side
    42,732,003.80x = 1,285,625,737,930,370.50
  5. Step 5: Solve for x
    x = 1,285,625,737,930,370.50/42,732,003.80
  6. Step 6: Final answer
    x = 30,085,781.70

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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.