Home / 78,691,439.40-118,037,159.10-27,566,815.20

Finding the Fourth Proportional to 78,691,439.40, 118,037,159.10 and 27,566,815.20

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Solution

The fourth proportional to 78,691,439.40, 118,037,159.10 and 27,566,815.20 is: 41,350,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,691,439.40 : 118,037,159.10 = 27,566,815.20 : x
  2. Step 2: Convert to fraction form
    78,691,439.40/118,037,159.10 = 27,566,815.20/x
  3. Step 3: Cross multiply
    78,691,439.40x = 118,037,159.10 × 27,566,815.20
  4. Step 4: Simplify right side
    78,691,439.40x = 3,253,908,551,642,698
  5. Step 5: Solve for x
    x = 3,253,908,551,642,698/78,691,439.40
  6. Step 6: Final answer
    x = 41,350,222.80

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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.