Home / 78,342,841.60-117,532,924.80-37,920,083.20

Finding the Fourth Proportional to 78,342,841.60, 117,532,924.80 and 37,920,083.20

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Solution

The fourth proportional to 78,342,841.60, 117,532,924.80 and 37,920,083.20 is: 56,889,157.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,342,841.60 : 117,532,924.80 = 37,920,083.20 : x
  2. Step 2: Convert to fraction form
    78,342,841.60/117,532,924.80 = 37,920,083.20/x
  3. Step 3: Cross multiply
    78,342,841.60x = 117,532,924.80 × 37,920,083.20
  4. Step 4: Simplify right side
    78,342,841.60x = 4,456,858,287,155,343.50
  5. Step 5: Solve for x
    x = 4,456,858,287,155,343.50/78,342,841.60
  6. Step 6: Final answer
    x = 56,889,157.91

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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.