Home / 21,521,649.20-32,282,473.80-7,874,769.20

Finding the Fourth Proportional to 21,521,649.20, 32,282,473.80 and 7,874,769.20

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Solution

The fourth proportional to 21,521,649.20, 32,282,473.80 and 7,874,769.20 is: 11,812,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521,649.20 : 32,282,473.80 = 7,874,769.20 : x
  2. Step 2: Convert to fraction form
    21,521,649.20/32,282,473.80 = 7,874,769.20/x
  3. Step 3: Cross multiply
    21,521,649.20x = 32,282,473.80 × 7,874,769.20
  4. Step 4: Simplify right side
    21,521,649.20x = 254,217,030,380,046.97
  5. Step 5: Solve for x
    x = 254,217,030,380,046.97/21,521,649.20
  6. Step 6: Final answer
    x = 11,812,153.80

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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.