Home / 812,516,078.54-1,121,615,429.90-548,555,607.81

Finding the Fourth Proportional to 812,516,078.54, 1,121,615,429.90 and 548,555,607.81

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Solution

The fourth proportional to 812,516,078.54, 1,121,615,429.90 and 548,555,607.81 is: 757,238,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,516,078.54 : 1,121,615,429.90 = 548,555,607.81 : x
  2. Step 2: Convert to fraction form
    812,516,078.54/1,121,615,429.90 = 548,555,607.81/x
  3. Step 3: Cross multiply
    812,516,078.54x = 1,121,615,429.90 × 548,555,607.81
  4. Step 4: Simplify right side
    812,516,078.54x = 615,268,433,875,126,144
  5. Step 5: Solve for x
    x = 615,268,433,875,126,144/812,516,078.54
  6. Step 6: Final answer
    x = 757,238,472.11

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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.