Home / 18,937,982.40-28,418,637.60-8,160,446.40

Finding the Fourth Proportional to 18,937,982.40, 28,418,637.60 and 8,160,446.40

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Solution

The fourth proportional to 18,937,982.40, 28,418,637.60 and 8,160,446.40 is: 12,245,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937,982.40 : 28,418,637.60 = 8,160,446.40 : x
  2. Step 2: Convert to fraction form
    18,937,982.40/28,418,637.60 = 8,160,446.40/x
  3. Step 3: Cross multiply
    18,937,982.40x = 28,418,637.60 × 8,160,446.40
  4. Step 4: Simplify right side
    18,937,982.40x = 231,908,768,895,824.66
  5. Step 5: Solve for x
    x = 231,908,768,895,824.66/18,937,982.40
  6. Step 6: Final answer
    x = 12,245,695.66

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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.