Home / 15,307,234-21,123,982.92-8,431,694.80

Finding the Fourth Proportional to 15,307,234, 21,123,982.92 and 8,431,694.80

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Solution

The fourth proportional to 15,307,234, 21,123,982.92 and 8,431,694.80 is: 11,635,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307,234 : 21,123,982.92 = 8,431,694.80 : x
  2. Step 2: Convert to fraction form
    15,307,234/21,123,982.92 = 8,431,694.80/x
  3. Step 3: Cross multiply
    15,307,234x = 21,123,982.92 × 8,431,694.80
  4. Step 4: Simplify right side
    15,307,234x = 178,110,976,941,852.84
  5. Step 5: Solve for x
    x = 178,110,976,941,852.84/15,307,234
  6. Step 6: Final answer
    x = 11,635,738.82

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1.5x scale

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.