Home / 812,050,691.62-1,120,600,959.61-459,619,115.57

Finding the Fourth Proportional to 812,050,691.62, 1,120,600,959.61 and 459,619,115.57

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Solution

The fourth proportional to 812,050,691.62, 1,120,600,959.61 and 459,619,115.57 is: 634,257,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,050,691.62 : 1,120,600,959.61 = 459,619,115.57 : x
  2. Step 2: Convert to fraction form
    812,050,691.62/1,120,600,959.61 = 459,619,115.57/x
  3. Step 3: Cross multiply
    812,050,691.62x = 1,120,600,959.61 × 459,619,115.57
  4. Step 4: Simplify right side
    812,050,691.62x = 515,049,621,960,543,424
  5. Step 5: Solve for x
    x = 515,049,621,960,543,424/812,050,691.62
  6. Step 6: Final answer
    x = 634,257,968.47

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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.