Home / 143,441,413.20-197,948,226.24-81,561,746.88

Finding the Fourth Proportional to 143,441,413.20, 197,948,226.24 and 81,561,746.88

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Solution

The fourth proportional to 143,441,413.20, 197,948,226.24 and 81,561,746.88 is: 112,554,685.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,441,413.20 : 197,948,226.24 = 81,561,746.88 : x
  2. Step 2: Convert to fraction form
    143,441,413.20/197,948,226.24 = 81,561,746.88/x
  3. Step 3: Cross multiply
    143,441,413.20x = 197,948,226.24 × 81,561,746.88
  4. Step 4: Simplify right side
    143,441,413.20x = 16,145,003,123,931,854
  5. Step 5: Solve for x
    x = 16,145,003,123,931,854/143,441,413.20
  6. Step 6: Final answer
    x = 112,554,685.32

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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.