Home / 514,945,803.20-772,418,704.80-480,681,636.80

Finding the Fourth Proportional to 514,945,803.20, 772,418,704.80 and 480,681,636.80

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Solution

The fourth proportional to 514,945,803.20, 772,418,704.80 and 480,681,636.80 is: 721,022,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,945,803.20 : 772,418,704.80 = 480,681,636.80 : x
  2. Step 2: Convert to fraction form
    514,945,803.20/772,418,704.80 = 480,681,636.80/x
  3. Step 3: Cross multiply
    514,945,803.20x = 772,418,704.80 × 480,681,636.80
  4. Step 4: Simplify right side
    514,945,803.20x = 371,287,487,318,200,000
  5. Step 5: Solve for x
    x = 371,287,487,318,200,000/514,945,803.20
  6. Step 6: Final answer
    x = 721,022,455.20

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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.