Home / 812,516,074.23-1,121,615,423.94-548,555,603.46

Finding the Fourth Proportional to 812,516,074.23, 1,121,615,423.94 and 548,555,603.46

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Solution

The fourth proportional to 812,516,074.23, 1,121,615,423.94 and 548,555,603.46 is: 757,238,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,516,074.23 : 1,121,615,423.94 = 548,555,603.46 : x
  2. Step 2: Convert to fraction form
    812,516,074.23/1,121,615,423.94 = 548,555,603.46/x
  3. Step 3: Cross multiply
    812,516,074.23x = 1,121,615,423.94 × 548,555,603.46
  4. Step 4: Simplify right side
    812,516,074.23x = 615,268,425,729,450,496
  5. Step 5: Solve for x
    x = 615,268,425,729,450,496/812,516,074.23
  6. Step 6: Final answer
    x = 757,238,466.10

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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.