Home / 13,531,601.40-20,297,402.10-12,187,908.60

Finding the Fourth Proportional to 13,531,601.40, 20,297,402.10 and 12,187,908.60

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Solution

The fourth proportional to 13,531,601.40, 20,297,402.10 and 12,187,908.60 is: 18,281,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531,601.40 : 20,297,402.10 = 12,187,908.60 : x
  2. Step 2: Convert to fraction form
    13,531,601.40/20,297,402.10 = 12,187,908.60/x
  3. Step 3: Cross multiply
    13,531,601.40x = 20,297,402.10 × 12,187,908.60
  4. Step 4: Simplify right side
    13,531,601.40x = 247,382,881,612,248.06
  5. Step 5: Solve for x
    x = 247,382,881,612,248.06/13,531,601.40
  6. Step 6: Final answer
    x = 18,281,862.90

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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.