Home / 84,248,143.20-126,372,214.80-71,493,559.20

Finding the Fourth Proportional to 84,248,143.20, 126,372,214.80 and 71,493,559.20

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Solution

The fourth proportional to 84,248,143.20, 126,372,214.80 and 71,493,559.20 is: 107,240,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,143.20 : 126,372,214.80 = 71,493,559.20 : x
  2. Step 2: Convert to fraction form
    84,248,143.20/126,372,214.80 = 71,493,559.20/x
  3. Step 3: Cross multiply
    84,248,143.20x = 126,372,214.80 × 71,493,559.20
  4. Step 4: Simplify right side
    84,248,143.20x = 9,034,799,420,038,916
  5. Step 5: Solve for x
    x = 9,034,799,420,038,916/84,248,143.20
  6. Step 6: Final answer
    x = 107,240,338.80

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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.