Home / 13,251,736.80-19,865,941.20-8,978,047.20

Finding the Fourth Proportional to 13,251,736.80, 19,865,941.20 and 8,978,047.20

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Solution

The fourth proportional to 13,251,736.80, 19,865,941.20 and 8,978,047.20 is: 13,459,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251,736.80 : 19,865,941.20 = 8,978,047.20 : x
  2. Step 2: Convert to fraction form
    13,251,736.80/19,865,941.20 = 8,978,047.20/x
  3. Step 3: Cross multiply
    13,251,736.80x = 19,865,941.20 × 8,978,047.20
  4. Step 4: Simplify right side
    13,251,736.80x = 178,357,357,766,024.62
  5. Step 5: Solve for x
    x = 178,357,357,766,024.62/13,251,736.80
  6. Step 6: Final answer
    x = 13,459,168.44

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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.