Home / 79,222,801.60-118,834,202.40-78,718,916.80

Finding the Fourth Proportional to 79,222,801.60, 118,834,202.40 and 78,718,916.80

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Solution

The fourth proportional to 79,222,801.60, 118,834,202.40 and 78,718,916.80 is: 118,078,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,222,801.60 : 118,834,202.40 = 78,718,916.80 : x
  2. Step 2: Convert to fraction form
    79,222,801.60/118,834,202.40 = 78,718,916.80/x
  3. Step 3: Cross multiply
    79,222,801.60x = 118,834,202.40 × 78,718,916.80
  4. Step 4: Simplify right side
    79,222,801.60x = 9,354,499,691,719,960
  5. Step 5: Solve for x
    x = 9,354,499,691,719,960/79,222,801.60
  6. Step 6: Final answer
    x = 118,078,375.20

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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.