Home / 1,115,152,180.76-1,672,918,839.59-459,744,928.04

Finding the Fourth Proportional to 1,115,152,180.76, 1,672,918,839.59 and 459,744,928.04

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Solution

The fourth proportional to 1,115,152,180.76, 1,672,918,839.59 and 459,744,928.04 is: 689,695,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,152,180.76 : 1,672,918,839.59 = 459,744,928.04 : x
  2. Step 2: Convert to fraction form
    1,115,152,180.76/1,672,918,839.59 = 459,744,928.04/x
  3. Step 3: Cross multiply
    1,115,152,180.76x = 1,672,918,839.59 × 459,744,928.04
  4. Step 4: Simplify right side
    1,115,152,180.76x = 769,115,951,513,401,600
  5. Step 5: Solve for x
    x = 769,115,951,513,401,600/1,115,152,180.76
  6. Step 6: Final answer
    x = 689,695,957.90

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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.