Home / 76,996,986.60-115,495,479.90-48,331,540.20

Finding the Fourth Proportional to 76,996,986.60, 115,495,479.90 and 48,331,540.20

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Solution

The fourth proportional to 76,996,986.60, 115,495,479.90 and 48,331,540.20 is: 72,497,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,996,986.60 : 115,495,479.90 = 48,331,540.20 : x
  2. Step 2: Convert to fraction form
    76,996,986.60/115,495,479.90 = 48,331,540.20/x
  3. Step 3: Cross multiply
    76,996,986.60x = 115,495,479.90 × 48,331,540.20
  4. Step 4: Simplify right side
    76,996,986.60x = 5,582,074,429,705,143
  5. Step 5: Solve for x
    x = 5,582,074,429,705,143/76,996,986.60
  6. Step 6: Final answer
    x = 72,497,310.30

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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.