Home / 170,817,761.60-256,226,642.40-78,701,321.60

Finding the Fourth Proportional to 170,817,761.60, 256,226,642.40 and 78,701,321.60

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Solution

The fourth proportional to 170,817,761.60, 256,226,642.40 and 78,701,321.60 is: 118,051,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,817,761.60 : 256,226,642.40 = 78,701,321.60 : x
  2. Step 2: Convert to fraction form
    170,817,761.60/256,226,642.40 = 78,701,321.60/x
  3. Step 3: Cross multiply
    170,817,761.60x = 256,226,642.40 × 78,701,321.60
  4. Step 4: Simplify right side
    170,817,761.60x = 20,165,375,386,010,596
  5. Step 5: Solve for x
    x = 20,165,375,386,010,596/170,817,761.60
  6. Step 6: Final answer
    x = 118,051,982.40

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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.