Home / 72,581,343.20-108,872,014.80-49,589,266.40

Finding the Fourth Proportional to 72,581,343.20, 108,872,014.80 and 49,589,266.40

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Solution

The fourth proportional to 72,581,343.20, 108,872,014.80 and 49,589,266.40 is: 74,383,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,343.20 : 108,872,014.80 = 49,589,266.40 : x
  2. Step 2: Convert to fraction form
    72,581,343.20/108,872,014.80 = 49,589,266.40/x
  3. Step 3: Cross multiply
    72,581,343.20x = 108,872,014.80 × 49,589,266.40
  4. Step 4: Simplify right side
    72,581,343.20x = 5,398,883,345,421,942
  5. Step 5: Solve for x
    x = 5,398,883,345,421,942/72,581,343.20
  6. Step 6: Final answer
    x = 74,383,899.60

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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.