Home / 28,083,620.20-42,156,923.10-21,722,074.60

Finding the Fourth Proportional to 28,083,620.20, 42,156,923.10 and 21,722,074.60

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Solution

The fourth proportional to 28,083,620.20, 42,156,923.10 and 21,722,074.60 is: 32,607,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,620.20 : 42,156,923.10 = 21,722,074.60 : x
  2. Step 2: Convert to fraction form
    28,083,620.20/42,156,923.10 = 21,722,074.60/x
  3. Step 3: Cross multiply
    28,083,620.20x = 42,156,923.10 × 21,722,074.60
  4. Step 4: Simplify right side
    28,083,620.20x = 915,735,828,484,663.38
  5. Step 5: Solve for x
    x = 915,735,828,484,663.38/28,083,620.20
  6. Step 6: Final answer
    x = 32,607,470.90

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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.