Home / 812,050,691.24-1,120,600,959.09-459,619,115.20

Finding the Fourth Proportional to 812,050,691.24, 1,120,600,959.09 and 459,619,115.20

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Solution

The fourth proportional to 812,050,691.24, 1,120,600,959.09 and 459,619,115.20 is: 634,257,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,050,691.24 : 1,120,600,959.09 = 459,619,115.20 : x
  2. Step 2: Convert to fraction form
    812,050,691.24/1,120,600,959.09 = 459,619,115.20/x
  3. Step 3: Cross multiply
    812,050,691.24x = 1,120,600,959.09 × 459,619,115.20
  4. Step 4: Simplify right side
    812,050,691.24x = 515,049,621,309,217,152
  5. Step 5: Solve for x
    x = 515,049,621,309,217,152/812,050,691.24
  6. Step 6: Final answer
    x = 634,257,967.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.