Home / 812,516,072.73-1,121,615,421.87-548,555,601.96

Finding the Fourth Proportional to 812,516,072.73, 1,121,615,421.87 and 548,555,601.96

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Solution

The fourth proportional to 812,516,072.73, 1,121,615,421.87 and 548,555,601.96 is: 757,238,464.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,516,072.73 : 1,121,615,421.87 = 548,555,601.96 : x
  2. Step 2: Convert to fraction form
    812,516,072.73/1,121,615,421.87 = 548,555,601.96/x
  3. Step 3: Cross multiply
    812,516,072.73x = 1,121,615,421.87 × 548,555,601.96
  4. Step 4: Simplify right side
    812,516,072.73x = 615,268,422,911,517,184
  5. Step 5: Solve for x
    x = 615,268,422,911,517,184/812,516,072.73
  6. Step 6: Final answer
    x = 757,238,464.03

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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.