Home / 42,154,807.38-58,155,820.83-28,220,651.85

Finding the Fourth Proportional to 42,154,807.38, 58,155,820.83 and 28,220,651.85

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Solution

The fourth proportional to 42,154,807.38, 58,155,820.83 and 28,220,651.85 is: 38,932,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154,807.38 : 58,155,820.83 = 28,220,651.85 : x
  2. Step 2: Convert to fraction form
    42,154,807.38/58,155,820.83 = 28,220,651.85/x
  3. Step 3: Cross multiply
    42,154,807.38x = 58,155,820.83 × 28,220,651.85
  4. Step 4: Simplify right side
    42,154,807.38x = 1,641,195,172,743,060.50
  5. Step 5: Solve for x
    x = 1,641,195,172,743,060.50/42,154,807.38
  6. Step 6: Final answer
    x = 38,932,574.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.