Home / 78,996,896.20-118,495,344.30-40,733,144.20

Finding the Fourth Proportional to 78,996,896.20, 118,495,344.30 and 40,733,144.20

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Solution

The fourth proportional to 78,996,896.20, 118,495,344.30 and 40,733,144.20 is: 61,099,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,996,896.20 : 118,495,344.30 = 40,733,144.20 : x
  2. Step 2: Convert to fraction form
    78,996,896.20/118,495,344.30 = 40,733,144.20/x
  3. Step 3: Cross multiply
    78,996,896.20x = 118,495,344.30 × 40,733,144.20
  4. Step 4: Simplify right side
    78,996,896.20x = 4,826,687,946,400,548
  5. Step 5: Solve for x
    x = 4,826,687,946,400,548/78,996,896.20
  6. Step 6: Final answer
    x = 61,099,716.30

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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.