Home / 80,968,000.10-121,452,000.15-73,157,785.70

Finding the Fourth Proportional to 80,968,000.10, 121,452,000.15 and 73,157,785.70

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Solution

The fourth proportional to 80,968,000.10, 121,452,000.15 and 73,157,785.70 is: 109,736,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968,000.10 : 121,452,000.15 = 73,157,785.70 : x
  2. Step 2: Convert to fraction form
    80,968,000.10/121,452,000.15 = 73,157,785.70/x
  3. Step 3: Cross multiply
    80,968,000.10x = 121,452,000.15 × 73,157,785.70
  4. Step 4: Simplify right side
    80,968,000.10x = 8,885,159,399,810,069
  5. Step 5: Solve for x
    x = 8,885,159,399,810,069/80,968,000.10
  6. Step 6: Final answer
    x = 109,736,678.55

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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.