Home / 328,049,197.20-492,079,627.80-98,021,120.40

Finding the Fourth Proportional to 328,049,197.20, 492,079,627.80 and 98,021,120.40

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Solution

The fourth proportional to 328,049,197.20, 492,079,627.80 and 98,021,120.40 is: 147,033,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,049,197.20 : 492,079,627.80 = 98,021,120.40 : x
  2. Step 2: Convert to fraction form
    328,049,197.20/492,079,627.80 = 98,021,120.40/x
  3. Step 3: Cross multiply
    328,049,197.20x = 492,079,627.80 × 98,021,120.40
  4. Step 4: Simplify right side
    328,049,197.20x = 48,234,196,442,970,992
  5. Step 5: Solve for x
    x = 48,234,196,442,970,992/328,049,197.20
  6. Step 6: Final answer
    x = 147,033,423.20

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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.