Home / 20,618,438.48-28,452,524.04-12,363,057.36

Finding the Fourth Proportional to 20,618,438.48, 28,452,524.04 and 12,363,057.36

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Solution

The fourth proportional to 20,618,438.48, 28,452,524.04 and 12,363,057.36 is: 17,060,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618,438.48 : 28,452,524.04 = 12,363,057.36 : x
  2. Step 2: Convert to fraction form
    20,618,438.48/28,452,524.04 = 12,363,057.36/x
  3. Step 3: Cross multiply
    20,618,438.48x = 28,452,524.04 × 12,363,057.36
  4. Step 4: Simplify right side
    20,618,438.48x = 351,760,186,743,298.94
  5. Step 5: Solve for x
    x = 351,760,186,743,298.94/20,618,438.48
  6. Step 6: Final answer
    x = 17,060,466.88

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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.