Home / 12,129,468.20-18,194,202.30-10,302,885.80

Finding the Fourth Proportional to 12,129,468.20, 18,194,202.30 and 10,302,885.80

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Solution

The fourth proportional to 12,129,468.20, 18,194,202.30 and 10,302,885.80 is: 15,454,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,468.20 : 18,194,202.30 = 10,302,885.80 : x
  2. Step 2: Convert to fraction form
    12,129,468.20/18,194,202.30 = 10,302,885.80/x
  3. Step 3: Cross multiply
    12,129,468.20x = 18,194,202.30 × 10,302,885.80
  4. Step 4: Simplify right side
    12,129,468.20x = 187,452,788,518,997.38
  5. Step 5: Solve for x
    x = 187,452,788,518,997.38/12,129,468.20
  6. Step 6: Final answer
    x = 15,454,328.70

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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.