Home / 280,883,375.12-421,491,509.08-156,490,122.04

Finding the Fourth Proportional to 280,883,375.12, 421,491,509.08 and 156,490,122.04

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Solution

The fourth proportional to 280,883,375.12, 421,491,509.08 and 156,490,122.04 is: 234,827,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,883,375.12 : 421,491,509.08 = 156,490,122.04 : x
  2. Step 2: Convert to fraction form
    280,883,375.12/421,491,509.08 = 156,490,122.04/x
  3. Step 3: Cross multiply
    280,883,375.12x = 421,491,509.08 × 156,490,122.04
  4. Step 4: Simplify right side
    280,883,375.12x = 65,959,257,693,308,008
  5. Step 5: Solve for x
    x = 65,959,257,693,308,008/280,883,375.12
  6. Step 6: Final answer
    x = 234,827,916.26

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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.