Home / 47,781,417.78-71,672,389.20-11,879,625.78

Finding the Fourth Proportional to 47,781,417.78, 71,672,389.20 and 11,879,625.78

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Solution

The fourth proportional to 47,781,417.78, 71,672,389.20 and 11,879,625.78 is: 17,819,503.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,781,417.78 : 71,672,389.20 = 11,879,625.78 : x
  2. Step 2: Convert to fraction form
    47,781,417.78/71,672,389.20 = 11,879,625.78/x
  3. Step 3: Cross multiply
    47,781,417.78x = 71,672,389.20 × 11,879,625.78
  4. Step 4: Simplify right side
    47,781,417.78x = 851,441,162,454,513.62
  5. Step 5: Solve for x
    x = 851,441,162,454,513.62/47,781,417.78
  6. Step 6: Final answer
    x = 17,819,503.94

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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.