Home / 122,665,805.10-183,998,707.65-81,851,136.30

Finding the Fourth Proportional to 122,665,805.10, 183,998,707.65 and 81,851,136.30

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Solution

The fourth proportional to 122,665,805.10, 183,998,707.65 and 81,851,136.30 is: 122,776,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,665,805.10 : 183,998,707.65 = 81,851,136.30 : x
  2. Step 2: Convert to fraction form
    122,665,805.10/183,998,707.65 = 81,851,136.30/x
  3. Step 3: Cross multiply
    122,665,805.10x = 183,998,707.65 × 81,851,136.30
  4. Step 4: Simplify right side
    122,665,805.10x = 15,060,503,298,884,002
  5. Step 5: Solve for x
    x = 15,060,503,298,884,002/122,665,805.10
  6. Step 6: Final answer
    x = 122,776,704.45

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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.