Home / 42,286,363.80-63,429,545.70-20,763,003.30

Finding the Fourth Proportional to 42,286,363.80, 63,429,545.70 and 20,763,003.30

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Solution

The fourth proportional to 42,286,363.80, 63,429,545.70 and 20,763,003.30 is: 31,144,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,286,363.80 : 63,429,545.70 = 20,763,003.30 : x
  2. Step 2: Convert to fraction form
    42,286,363.80/63,429,545.70 = 20,763,003.30/x
  3. Step 3: Cross multiply
    42,286,363.80x = 63,429,545.70 × 20,763,003.30
  4. Step 4: Simplify right side
    42,286,363.80x = 1,316,987,866,686,601
  5. Step 5: Solve for x
    x = 1,316,987,866,686,601/42,286,363.80
  6. Step 6: Final answer
    x = 31,144,504.95

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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.