Home / 124,987,307.80-187,452,968.10-82,157,099.80

Finding the Fourth Proportional to 124,987,307.80, 187,452,968.10 and 82,157,099.80

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Solution

The fourth proportional to 124,987,307.80, 187,452,968.10 and 82,157,099.80 is: 123,217,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987,307.80 : 187,452,968.10 = 82,157,099.80 : x
  2. Step 2: Convert to fraction form
    124,987,307.80/187,452,968.10 = 82,157,099.80/x
  3. Step 3: Cross multiply
    124,987,307.80x = 187,452,968.10 × 82,157,099.80
  4. Step 4: Simplify right side
    124,987,307.80x = 15,400,592,207,997,916
  5. Step 5: Solve for x
    x = 15,400,592,207,997,916/124,987,307.80
  6. Step 6: Final answer
    x = 123,217,248.85

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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.