Home / 355,687,600.77-490,838,346.92-196,924,799.55

Finding the Fourth Proportional to 355,687,600.77, 490,838,346.92 and 196,924,799.55

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Solution

The fourth proportional to 355,687,600.77, 490,838,346.92 and 196,924,799.55 is: 271,750,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,687,600.77 : 490,838,346.92 = 196,924,799.55 : x
  2. Step 2: Convert to fraction form
    355,687,600.77/490,838,346.92 = 196,924,799.55/x
  3. Step 3: Cross multiply
    355,687,600.77x = 490,838,346.92 × 196,924,799.55
  4. Step 4: Simplify right side
    355,687,600.77x = 96,658,243,077,689,744
  5. Step 5: Solve for x
    x = 96,658,243,077,689,744/355,687,600.77
  6. Step 6: Final answer
    x = 271,750,386.77

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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.