Home / 120,517,478.24-166,312,938.48-65,510,061.92

Finding the Fourth Proportional to 120,517,478.24, 166,312,938.48 and 65,510,061.92

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Solution

The fourth proportional to 120,517,478.24, 166,312,938.48 and 65,510,061.92 is: 90,403,243.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,517,478.24 : 166,312,938.48 = 65,510,061.92 : x
  2. Step 2: Convert to fraction form
    120,517,478.24/166,312,938.48 = 65,510,061.92/x
  3. Step 3: Cross multiply
    120,517,478.24x = 166,312,938.48 × 65,510,061.92
  4. Step 4: Simplify right side
    120,517,478.24x = 10,895,170,897,921,950
  5. Step 5: Solve for x
    x = 10,895,170,897,921,950/120,517,478.24
  6. Step 6: Final answer
    x = 90,403,243.22

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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.