Home / 198,104,964.40-297,157,446.60-61,790,129.20

Finding the Fourth Proportional to 198,104,964.40, 297,157,446.60 and 61,790,129.20

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Solution

The fourth proportional to 198,104,964.40, 297,157,446.60 and 61,790,129.20 is: 92,685,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,104,964.40 : 297,157,446.60 = 61,790,129.20 : x
  2. Step 2: Convert to fraction form
    198,104,964.40/297,157,446.60 = 61,790,129.20/x
  3. Step 3: Cross multiply
    198,104,964.40x = 297,157,446.60 × 61,790,129.20
  4. Step 4: Simplify right side
    198,104,964.40x = 18,361,397,018,156,104
  5. Step 5: Solve for x
    x = 18,361,397,018,156,104/198,104,964.40
  6. Step 6: Final answer
    x = 92,685,193.80

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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.