Home / 137,642,718.60-206,464,077.90-79,449,929.10

Finding the Fourth Proportional to 137,642,718.60, 206,464,077.90 and 79,449,929.10

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Solution

The fourth proportional to 137,642,718.60, 206,464,077.90 and 79,449,929.10 is: 119,174,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,642,718.60 : 206,464,077.90 = 79,449,929.10 : x
  2. Step 2: Convert to fraction form
    137,642,718.60/206,464,077.90 = 79,449,929.10/x
  3. Step 3: Cross multiply
    137,642,718.60x = 206,464,077.90 × 79,449,929.10
  4. Step 4: Simplify right side
    137,642,718.60x = 16,403,556,350,851,876
  5. Step 5: Solve for x
    x = 16,403,556,350,851,876/137,642,718.60
  6. Step 6: Final answer
    x = 119,174,893.65

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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.