Home / 126,225,320.80-189,337,981.20-39,970,478.20

Finding the Fourth Proportional to 126,225,320.80, 189,337,981.20 and 39,970,478.20

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Solution

The fourth proportional to 126,225,320.80, 189,337,981.20 and 39,970,478.20 is: 59,955,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,225,320.80 : 189,337,981.20 = 39,970,478.20 : x
  2. Step 2: Convert to fraction form
    126,225,320.80/189,337,981.20 = 39,970,478.20/x
  3. Step 3: Cross multiply
    126,225,320.80x = 189,337,981.20 × 39,970,478.20
  4. Step 4: Simplify right side
    126,225,320.80x = 7,567,929,649,986,610
  5. Step 5: Solve for x
    x = 7,567,929,649,986,610/126,225,320.80
  6. Step 6: Final answer
    x = 59,955,717.30

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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.