Home / 18,691,971.41-28,037,731.50-4,857,704.70

Finding the Fourth Proportional to 18,691,971.41, 28,037,731.50 and 4,857,704.70

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Solution

The fourth proportional to 18,691,971.41, 28,037,731.50 and 4,857,704.70 is: 7,286,498.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,971.41 : 28,037,731.50 = 4,857,704.70 : x
  2. Step 2: Convert to fraction form
    18,691,971.41/28,037,731.50 = 4,857,704.70/x
  3. Step 3: Cross multiply
    18,691,971.41x = 28,037,731.50 × 4,857,704.70
  4. Step 4: Simplify right side
    18,691,971.41x = 136,199,020,084,888.06
  5. Step 5: Solve for x
    x = 136,199,020,084,888.06/18,691,971.41
  6. Step 6: Final answer
    x = 7,286,498.42

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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.