Home / 355,687,678.46-490,838,453.94-196,924,877.17

Finding the Fourth Proportional to 355,687,678.46, 490,838,453.94 and 196,924,877.17

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Solution

The fourth proportional to 355,687,678.46, 490,838,453.94 and 196,924,877.17 is: 271,750,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,687,678.46 : 490,838,453.94 = 196,924,877.17 : x
  2. Step 2: Convert to fraction form
    355,687,678.46/490,838,453.94 = 196,924,877.17/x
  3. Step 3: Cross multiply
    355,687,678.46x = 490,838,453.94 × 196,924,877.17
  4. Step 4: Simplify right side
    355,687,678.46x = 96,658,302,252,447,200
  5. Step 5: Solve for x
    x = 96,658,302,252,447,200/355,687,678.46
  6. Step 6: Final answer
    x = 271,750,493.78

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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.