Home / 431,796,337.20-647,694,505.80-248,130,327.60

Finding the Fourth Proportional to 431,796,337.20, 647,694,505.80 and 248,130,327.60

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Solution

The fourth proportional to 431,796,337.20, 647,694,505.80 and 248,130,327.60 is: 372,195,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,337.20 : 647,694,505.80 = 248,130,327.60 : x
  2. Step 2: Convert to fraction form
    431,796,337.20/647,694,505.80 = 248,130,327.60/x
  3. Step 3: Cross multiply
    431,796,337.20x = 647,694,505.80 × 248,130,327.60
  4. Step 4: Simplify right side
    431,796,337.20x = 160,712,649,908,874,080
  5. Step 5: Solve for x
    x = 160,712,649,908,874,080/431,796,337.20
  6. Step 6: Final answer
    x = 372,195,491.40

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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.