Home / 203,918,472.90-305,835,200.55-74,587,004.10

Finding the Fourth Proportional to 203,918,472.90, 305,835,200.55 and 74,587,004.10

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Solution

The fourth proportional to 203,918,472.90, 305,835,200.55 and 74,587,004.10 is: 111,864,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,918,472.90 : 305,835,200.55 = 74,587,004.10 : x
  2. Step 2: Convert to fraction form
    203,918,472.90/305,835,200.55 = 74,587,004.10/x
  3. Step 3: Cross multiply
    203,918,472.90x = 305,835,200.55 × 74,587,004.10
  4. Step 4: Simplify right side
    203,918,472.90x = 22,811,331,357,347,172
  5. Step 5: Solve for x
    x = 22,811,331,357,347,172/203,918,472.90
  6. Step 6: Final answer
    x = 111,864,957.76

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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.