Home / 78,342,845.60-117,532,930.80-37,920,087.20

Finding the Fourth Proportional to 78,342,845.60, 117,532,930.80 and 37,920,087.20

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Solution

The fourth proportional to 78,342,845.60, 117,532,930.80 and 37,920,087.20 is: 56,889,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,342,845.60 : 117,532,930.80 = 37,920,087.20 : x
  2. Step 2: Convert to fraction form
    78,342,845.60/117,532,930.80 = 37,920,087.20/x
  3. Step 3: Cross multiply
    78,342,845.60x = 117,532,930.80 × 37,920,087.20
  4. Step 4: Simplify right side
    78,342,845.60x = 4,456,858,984,807,566
  5. Step 5: Solve for x
    x = 4,456,858,984,807,566/78,342,845.60
  6. Step 6: Final answer
    x = 56,889,163.91

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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.