Home / 12,124,867.70-18,187,301.55-11,005,123.70

Finding the Fourth Proportional to 12,124,867.70, 18,187,301.55 and 11,005,123.70

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Solution

The fourth proportional to 12,124,867.70, 18,187,301.55 and 11,005,123.70 is: 16,507,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124,867.70 : 18,187,301.55 = 11,005,123.70 : x
  2. Step 2: Convert to fraction form
    12,124,867.70/18,187,301.55 = 11,005,123.70/x
  3. Step 3: Cross multiply
    12,124,867.70x = 18,187,301.55 × 11,005,123.70
  4. Step 4: Simplify right side
    12,124,867.70x = 200,153,503,326,951.72
  5. Step 5: Solve for x
    x = 200,153,503,326,951.72/12,124,867.70
  6. Step 6: Final answer
    x = 16,507,685.55

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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.