Home / 78,342,829.10-117,532,906.05-37,920,070.70

Finding the Fourth Proportional to 78,342,829.10, 117,532,906.05 and 37,920,070.70

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Solution

The fourth proportional to 78,342,829.10, 117,532,906.05 and 37,920,070.70 is: 56,889,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,342,829.10 : 117,532,906.05 = 37,920,070.70 : x
  2. Step 2: Convert to fraction form
    78,342,829.10/117,532,906.05 = 37,920,070.70/x
  3. Step 3: Cross multiply
    78,342,829.10x = 117,532,906.05 × 37,920,070.70
  4. Step 4: Simplify right side
    78,342,829.10x = 4,456,856,106,992,458
  5. Step 5: Solve for x
    x = 4,456,856,106,992,458/78,342,829.10
  6. Step 6: Final answer
    x = 56,889,139.16

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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.