Home / 812,013,736.91-1,120,386,876.65-459,589,727.62

Finding the Fourth Proportional to 812,013,736.91, 1,120,386,876.65 and 459,589,727.62

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Solution

The fourth proportional to 812,013,736.91, 1,120,386,876.65 and 459,589,727.62 is: 634,125,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,013,736.91 : 1,120,386,876.65 = 459,589,727.62 : x
  2. Step 2: Convert to fraction form
    812,013,736.91/1,120,386,876.65 = 459,589,727.62/x
  3. Step 3: Cross multiply
    812,013,736.91x = 1,120,386,876.65 × 459,589,727.62
  4. Step 4: Simplify right side
    812,013,736.91x = 514,918,299,468,596,096
  5. Step 5: Solve for x
    x = 514,918,299,468,596,096/812,013,736.91
  6. Step 6: Final answer
    x = 634,125,109.05

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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.