Home / 21,467,287.28-32,119,675.12-12,718,264.88

Finding the Fourth Proportional to 21,467,287.28, 32,119,675.12 and 12,718,264.88

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Solution

The fourth proportional to 21,467,287.28, 32,119,675.12 and 12,718,264.88 is: 19,029,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467,287.28 : 32,119,675.12 = 12,718,264.88 : x
  2. Step 2: Convert to fraction form
    21,467,287.28/32,119,675.12 = 12,718,264.88/x
  3. Step 3: Cross multiply
    21,467,287.28x = 32,119,675.12 × 12,718,264.88
  4. Step 4: Simplify right side
    21,467,287.28x = 408,506,536,035,705.81
  5. Step 5: Solve for x
    x = 408,506,536,035,705.81/21,467,287.28
  6. Step 6: Final answer
    x = 19,029,257.43

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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.