Home / 355,687,685.20-490,838,463.24-196,924,883.92

Finding the Fourth Proportional to 355,687,685.20, 490,838,463.24 and 196,924,883.92

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Solution

The fourth proportional to 355,687,685.20, 490,838,463.24 and 196,924,883.92 is: 271,750,503.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,687,685.20 : 490,838,463.24 = 196,924,883.92 : x
  2. Step 2: Convert to fraction form
    355,687,685.20/490,838,463.24 = 196,924,883.92/x
  3. Step 3: Cross multiply
    355,687,685.20x = 490,838,463.24 × 196,924,883.92
  4. Step 4: Simplify right side
    355,687,685.20x = 96,658,307,397,008,176
  5. Step 5: Solve for x
    x = 96,658,307,397,008,176/355,687,685.20
  6. Step 6: Final answer
    x = 271,750,503.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.