Home / 410,111,229.69-615,168,440.52-99,218,346.78

Finding the Fourth Proportional to 410,111,229.69, 615,168,440.52 and 99,218,346.78

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Solution

The fourth proportional to 410,111,229.69, 615,168,440.52 and 99,218,346.78 is: 148,827,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,111,229.69 : 615,168,440.52 = 99,218,346.78 : x
  2. Step 2: Convert to fraction form
    410,111,229.69/615,168,440.52 = 99,218,346.78/x
  3. Step 3: Cross multiply
    410,111,229.69x = 615,168,440.52 × 99,218,346.78
  4. Step 4: Simplify right side
    410,111,229.69x = 61,035,995,659,625,160
  5. Step 5: Solve for x
    x = 61,035,995,659,625,160/410,111,229.69
  6. Step 6: Final answer
    x = 148,827,906.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.