Home / 21,989,912.20-32,984,868.30-15,187,467.40

Finding the Fourth Proportional to 21,989,912.20, 32,984,868.30 and 15,187,467.40

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Solution

The fourth proportional to 21,989,912.20, 32,984,868.30 and 15,187,467.40 is: 22,781,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989,912.20 : 32,984,868.30 = 15,187,467.40 : x
  2. Step 2: Convert to fraction form
    21,989,912.20/32,984,868.30 = 15,187,467.40/x
  3. Step 3: Cross multiply
    21,989,912.20x = 32,984,868.30 × 15,187,467.40
  4. Step 4: Simplify right side
    21,989,912.20x = 500,956,611,999,543.44
  5. Step 5: Solve for x
    x = 500,956,611,999,543.44/21,989,912.20
  6. Step 6: Final answer
    x = 22,781,201.10

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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.