Home / 743,145,208.20-1,114,717,812.30-498,257,195.40

Finding the Fourth Proportional to 743,145,208.20, 1,114,717,812.30 and 498,257,195.40

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Solution

The fourth proportional to 743,145,208.20, 1,114,717,812.30 and 498,257,195.40 is: 747,385,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,145,208.20 : 1,114,717,812.30 = 498,257,195.40 : x
  2. Step 2: Convert to fraction form
    743,145,208.20/1,114,717,812.30 = 498,257,195.40/x
  3. Step 3: Cross multiply
    743,145,208.20x = 1,114,717,812.30 × 498,257,195.40
  4. Step 4: Simplify right side
    743,145,208.20x = 555,416,170,819,021,568
  5. Step 5: Solve for x
    x = 555,416,170,819,021,568/743,145,208.20
  6. Step 6: Final answer
    x = 747,385,793.10

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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.