Home / 21,562,463.97-29,755,793.53-13,189,217.67

Finding the Fourth Proportional to 21,562,463.97, 29,755,793.53 and 13,189,217.67

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Solution

The fourth proportional to 21,562,463.97, 29,755,793.53 and 13,189,217.67 is: 18,200,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562,463.97 : 29,755,793.53 = 13,189,217.67 : x
  2. Step 2: Convert to fraction form
    21,562,463.97/29,755,793.53 = 13,189,217.67/x
  3. Step 3: Cross multiply
    21,562,463.97x = 29,755,793.53 × 13,189,217.67
  4. Step 4: Simplify right side
    21,562,463.97x = 392,455,637,920,179.50
  5. Step 5: Solve for x
    x = 392,455,637,920,179.50/21,562,463.97
  6. Step 6: Final answer
    x = 18,200,871.59

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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.