Home / 215,791,998.80-323,687,998.20-196,140,491.60

Finding the Fourth Proportional to 215,791,998.80, 323,687,998.20 and 196,140,491.60

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Solution

The fourth proportional to 215,791,998.80, 323,687,998.20 and 196,140,491.60 is: 294,210,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,791,998.80 : 323,687,998.20 = 196,140,491.60 : x
  2. Step 2: Convert to fraction form
    215,791,998.80/323,687,998.20 = 196,140,491.60/x
  3. Step 3: Cross multiply
    215,791,998.80x = 323,687,998.20 × 196,140,491.60
  4. Step 4: Simplify right side
    215,791,998.80x = 63,488,323,091,967,912
  5. Step 5: Solve for x
    x = 63,488,323,091,967,912/215,791,998.80
  6. Step 6: Final answer
    x = 294,210,737.40

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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.