Home / 20,604,427.92-28,434,217.32-12,873,953.16

Finding the Fourth Proportional to 20,604,427.92, 28,434,217.32 and 12,873,953.16

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Solution

The fourth proportional to 20,604,427.92, 28,434,217.32 and 12,873,953.16 is: 17,766,122.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604,427.92 : 28,434,217.32 = 12,873,953.16 : x
  2. Step 2: Convert to fraction form
    20,604,427.92/28,434,217.32 = 12,873,953.16/x
  3. Step 3: Cross multiply
    20,604,427.92x = 28,434,217.32 × 12,873,953.16
  4. Step 4: Simplify right side
    20,604,427.92x = 366,060,781,918,940.75
  5. Step 5: Solve for x
    x = 366,060,781,918,940.75/20,604,427.92
  6. Step 6: Final answer
    x = 17,766,122.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.