Home / 198,104,645.40-297,156,968.10-61,789,810.20

Finding the Fourth Proportional to 198,104,645.40, 297,156,968.10 and 61,789,810.20

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Solution

The fourth proportional to 198,104,645.40, 297,156,968.10 and 61,789,810.20 is: 92,684,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,104,645.40 : 297,156,968.10 = 61,789,810.20 : x
  2. Step 2: Convert to fraction form
    198,104,645.40/297,156,968.10 = 61,789,810.20/x
  3. Step 3: Cross multiply
    198,104,645.40x = 297,156,968.10 × 61,789,810.20
  4. Step 4: Simplify right side
    198,104,645.40x = 18,361,272,658,506,456
  5. Step 5: Solve for x
    x = 18,361,272,658,506,456/198,104,645.40
  6. Step 6: Final answer
    x = 92,684,715.30

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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.