Home / 137,642,720.10-206,464,080.15-79,449,930.60

Finding the Fourth Proportional to 137,642,720.10, 206,464,080.15 and 79,449,930.60

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Solution

The fourth proportional to 137,642,720.10, 206,464,080.15 and 79,449,930.60 is: 119,174,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,642,720.10 : 206,464,080.15 = 79,449,930.60 : x
  2. Step 2: Convert to fraction form
    137,642,720.10/206,464,080.15 = 79,449,930.60/x
  3. Step 3: Cross multiply
    137,642,720.10x = 206,464,080.15 × 79,449,930.60
  4. Step 4: Simplify right side
    137,642,720.10x = 16,403,556,839,310,336
  5. Step 5: Solve for x
    x = 16,403,556,839,310,336/137,642,720.10
  6. Step 6: Final answer
    x = 119,174,895.90

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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.