Home / 80,256,064.20-120,384,096.30-79,808,166.60

Finding the Fourth Proportional to 80,256,064.20, 120,384,096.30 and 79,808,166.60

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Solution

The fourth proportional to 80,256,064.20, 120,384,096.30 and 79,808,166.60 is: 119,712,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,256,064.20 : 120,384,096.30 = 79,808,166.60 : x
  2. Step 2: Convert to fraction form
    80,256,064.20/120,384,096.30 = 79,808,166.60/x
  3. Step 3: Cross multiply
    80,256,064.20x = 120,384,096.30 × 79,808,166.60
  4. Step 4: Simplify right side
    80,256,064.20x = 9,607,634,013,500,842
  5. Step 5: Solve for x
    x = 9,607,634,013,500,842/80,256,064.20
  6. Step 6: Final answer
    x = 119,712,249.90

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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.