Home / 432,909,920.80-649,301,895.60-126,170,048.80

Finding the Fourth Proportional to 432,909,920.80, 649,301,895.60 and 126,170,048.80

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Solution

The fourth proportional to 432,909,920.80, 649,301,895.60 and 126,170,048.80 is: 189,236,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,909,920.80 : 649,301,895.60 = 126,170,048.80 : x
  2. Step 2: Convert to fraction form
    432,909,920.80/649,301,895.60 = 126,170,048.80/x
  3. Step 3: Cross multiply
    432,909,920.80x = 649,301,895.60 × 126,170,048.80
  4. Step 4: Simplify right side
    432,909,920.80x = 81,922,451,853,784,512
  5. Step 5: Solve for x
    x = 81,922,451,853,784,512/432,909,920.80
  6. Step 6: Final answer
    x = 189,236,716.27

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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.