Home / 19,103,484.10-28,655,447.27-8,172,187.42

Finding the Fourth Proportional to 19,103,484.10, 28,655,447.27 and 8,172,187.42

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Solution

The fourth proportional to 19,103,484.10, 28,655,447.27 and 8,172,187.42 is: 12,258,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103,484.10 : 28,655,447.27 = 8,172,187.42 : x
  2. Step 2: Convert to fraction form
    19,103,484.10/28,655,447.27 = 8,172,187.42/x
  3. Step 3: Cross multiply
    19,103,484.10x = 28,655,447.27 × 8,172,187.42
  4. Step 4: Simplify right side
    19,103,484.10x = 234,177,685,694,367.34
  5. Step 5: Solve for x
    x = 234,177,685,694,367.34/19,103,484.10
  6. Step 6: Final answer
    x = 12,258,375.72

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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.