Home / 472,394,695.20-708,592,042.80-355,997,306.40

Finding the Fourth Proportional to 472,394,695.20, 708,592,042.80 and 355,997,306.40

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Solution

The fourth proportional to 472,394,695.20, 708,592,042.80 and 355,997,306.40 is: 533,995,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,695.20 : 708,592,042.80 = 355,997,306.40 : x
  2. Step 2: Convert to fraction form
    472,394,695.20/708,592,042.80 = 355,997,306.40/x
  3. Step 3: Cross multiply
    472,394,695.20x = 708,592,042.80 × 355,997,306.40
  4. Step 4: Simplify right side
    472,394,695.20x = 252,256,858,573,273,472
  5. Step 5: Solve for x
    x = 252,256,858,573,273,472/472,394,695.20
  6. Step 6: Final answer
    x = 533,995,959.60

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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.