Home / 491,645,948.20-737,468,922.30-438,076,695.40

Finding the Fourth Proportional to 491,645,948.20, 737,468,922.30 and 438,076,695.40

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Solution

The fourth proportional to 491,645,948.20, 737,468,922.30 and 438,076,695.40 is: 657,115,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,645,948.20 : 737,468,922.30 = 438,076,695.40 : x
  2. Step 2: Convert to fraction form
    491,645,948.20/737,468,922.30 = 438,076,695.40/x
  3. Step 3: Cross multiply
    491,645,948.20x = 737,468,922.30 × 438,076,695.40
  4. Step 4: Simplify right side
    491,645,948.20x = 323,067,948,441,383,360
  5. Step 5: Solve for x
    x = 323,067,948,441,383,360/491,645,948.20
  6. Step 6: Final answer
    x = 657,115,043.10

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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.