Home / 125,500,521.02-173,136,996-78,375,781.89

Finding the Fourth Proportional to 125,500,521.02, 173,136,996 and 78,375,781.89

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Solution

The fourth proportional to 125,500,521.02, 173,136,996 and 78,375,781.89 is: 108,125,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,500,521.02 : 173,136,996 = 78,375,781.89 : x
  2. Step 2: Convert to fraction form
    125,500,521.02/173,136,996 = 78,375,781.89/x
  3. Step 3: Cross multiply
    125,500,521.02x = 173,136,996 × 78,375,781.89
  4. Step 4: Simplify right side
    125,500,521.02x = 13,569,747,435,585,802
  5. Step 5: Solve for x
    x = 13,569,747,435,585,802/125,500,521.02
  6. Step 6: Final answer
    x = 108,125,028.69

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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.