Home / 431,796,385.20-647,694,577.80-248,130,375.60

Finding the Fourth Proportional to 431,796,385.20, 647,694,577.80 and 248,130,375.60

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Solution

The fourth proportional to 431,796,385.20, 647,694,577.80 and 248,130,375.60 is: 372,195,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,385.20 : 647,694,577.80 = 248,130,375.60 : x
  2. Step 2: Convert to fraction form
    431,796,385.20/647,694,577.80 = 248,130,375.60/x
  3. Step 3: Cross multiply
    431,796,385.20x = 647,694,577.80 × 248,130,375.60
  4. Step 4: Simplify right side
    431,796,385.20x = 160,712,698,863,597,408
  5. Step 5: Solve for x
    x = 160,712,698,863,597,408/431,796,385.20
  6. Step 6: Final answer
    x = 372,195,563.40

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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.