Home / 440,909,743.35-661,378,939.22-129,991,286.55

Finding the Fourth Proportional to 440,909,743.35, 661,378,939.22 and 129,991,286.55

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Solution

The fourth proportional to 440,909,743.35, 661,378,939.22 and 129,991,286.55 is: 194,991,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,909,743.35 : 661,378,939.22 = 129,991,286.55 : x
  2. Step 2: Convert to fraction form
    440,909,743.35/661,378,939.22 = 129,991,286.55/x
  3. Step 3: Cross multiply
    440,909,743.35x = 661,378,939.22 × 129,991,286.55
  4. Step 4: Simplify right side
    440,909,743.35x = 85,973,499,208,974,448
  5. Step 5: Solve for x
    x = 85,973,499,208,974,448/440,909,743.35
  6. Step 6: Final answer
    x = 194,991,152.96

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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.