Home / 298,490,542.60-447,310,661.10-220,156,139.20

Finding the Fourth Proportional to 298,490,542.60, 447,310,661.10 and 220,156,139.20

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Solution

The fourth proportional to 298,490,542.60, 447,310,661.10 and 220,156,139.20 is: 329,920,631.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,490,542.60 : 447,310,661.10 = 220,156,139.20 : x
  2. Step 2: Convert to fraction form
    298,490,542.60/447,310,661.10 = 220,156,139.20/x
  3. Step 3: Cross multiply
    298,490,542.60x = 447,310,661.10 × 220,156,139.20
  4. Step 4: Simplify right side
    298,490,542.60x = 98,478,188,170,775,632
  5. Step 5: Solve for x
    x = 98,478,188,170,775,632/298,490,542.60
  6. Step 6: Final answer
    x = 329,920,631.03

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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.