Home / 12,589,421.40-18,912,125.70-12,253,498.20

Finding the Fourth Proportional to 12,589,421.40, 18,912,125.70 and 12,253,498.20

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Solution

The fourth proportional to 12,589,421.40, 18,912,125.70 and 12,253,498.20 is: 18,407,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,421.40 : 18,912,125.70 = 12,253,498.20 : x
  2. Step 2: Convert to fraction form
    12,589,421.40/18,912,125.70 = 12,253,498.20/x
  3. Step 3: Cross multiply
    12,589,421.40x = 18,912,125.70 × 12,253,498.20
  4. Step 4: Simplify right side
    12,589,421.40x = 231,739,698,223,123.72
  5. Step 5: Solve for x
    x = 231,739,698,223,123.72/12,589,421.40
  6. Step 6: Final answer
    x = 18,407,493.95

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1.5x scale

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.