Home / 12,290,672.40-18,436,008.60-11,072,950.80

Finding the Fourth Proportional to 12,290,672.40, 18,436,008.60 and 11,072,950.80

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Solution

The fourth proportional to 12,290,672.40, 18,436,008.60 and 11,072,950.80 is: 16,609,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,672.40 : 18,436,008.60 = 11,072,950.80 : x
  2. Step 2: Convert to fraction form
    12,290,672.40/18,436,008.60 = 11,072,950.80/x
  3. Step 3: Cross multiply
    12,290,672.40x = 18,436,008.60 × 11,072,950.80
  4. Step 4: Simplify right side
    12,290,672.40x = 204,141,016,176,176.91
  5. Step 5: Solve for x
    x = 204,141,016,176,176.91/12,290,672.40
  6. Step 6: Final answer
    x = 16,609,426.20

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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.