Home / 76,979,569.10-115,486,587.23-25,860,193.70

Finding the Fourth Proportional to 76,979,569.10, 115,486,587.23 and 25,860,193.70

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Solution

The fourth proportional to 76,979,569.10, 115,486,587.23 and 25,860,193.70 is: 38,796,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,979,569.10 : 115,486,587.23 = 25,860,193.70 : x
  2. Step 2: Convert to fraction form
    76,979,569.10/115,486,587.23 = 25,860,193.70/x
  3. Step 3: Cross multiply
    76,979,569.10x = 115,486,587.23 × 25,860,193.70
  4. Step 4: Simplify right side
    76,979,569.10x = 2,986,505,515,519,746.50
  5. Step 5: Solve for x
    x = 2,986,505,515,519,746.50/76,979,569.10
  6. Step 6: Final answer
    x = 38,796,079.93

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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.