Home / 21,385,908.30-32,078,862.45-12,882,852.30

Finding the Fourth Proportional to 21,385,908.30, 32,078,862.45 and 12,882,852.30

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Solution

The fourth proportional to 21,385,908.30, 32,078,862.45 and 12,882,852.30 is: 19,324,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,908.30 : 32,078,862.45 = 12,882,852.30 : x
  2. Step 2: Convert to fraction form
    21,385,908.30/32,078,862.45 = 12,882,852.30/x
  3. Step 3: Cross multiply
    21,385,908.30x = 32,078,862.45 × 12,882,852.30
  4. Step 4: Simplify right side
    21,385,908.30x = 413,267,246,895,366.12
  5. Step 5: Solve for x
    x = 413,267,246,895,366.12/21,385,908.30
  6. Step 6: Final answer
    x = 19,324,278.45

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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.