Home / 80,915,002.40-121,372,503.60-53,705,223.20

Finding the Fourth Proportional to 80,915,002.40, 121,372,503.60 and 53,705,223.20

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Solution

The fourth proportional to 80,915,002.40, 121,372,503.60 and 53,705,223.20 is: 80,557,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,915,002.40 : 121,372,503.60 = 53,705,223.20 : x
  2. Step 2: Convert to fraction form
    80,915,002.40/121,372,503.60 = 53,705,223.20/x
  3. Step 3: Cross multiply
    80,915,002.40x = 121,372,503.60 × 53,705,223.20
  4. Step 4: Simplify right side
    80,915,002.40x = 6,518,337,396,180,804
  5. Step 5: Solve for x
    x = 6,518,337,396,180,804/80,915,002.40
  6. Step 6: Final answer
    x = 80,557,834.80

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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.