Home / 139,753,879.20-209,819,775.60-88,735,543.20

Finding the Fourth Proportional to 139,753,879.20, 209,819,775.60 and 88,735,543.20

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Solution

The fourth proportional to 139,753,879.20, 209,819,775.60 and 88,735,543.20 is: 133,223,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,753,879.20 : 209,819,775.60 = 88,735,543.20 : x
  2. Step 2: Convert to fraction form
    139,753,879.20/209,819,775.60 = 88,735,543.20/x
  3. Step 3: Cross multiply
    139,753,879.20x = 209,819,775.60 × 88,735,543.20
  4. Step 4: Simplify right side
    139,753,879.20x = 18,618,471,761,968,108
  5. Step 5: Solve for x
    x = 18,618,471,761,968,108/139,753,879.20
  6. Step 6: Final answer
    x = 133,223,291.32

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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.