Home / 239,481,021.20-359,221,531.80-103,432,125.20

Finding the Fourth Proportional to 239,481,021.20, 359,221,531.80 and 103,432,125.20

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Solution

The fourth proportional to 239,481,021.20, 359,221,531.80 and 103,432,125.20 is: 155,148,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,481,021.20 : 359,221,531.80 = 103,432,125.20 : x
  2. Step 2: Convert to fraction form
    239,481,021.20/359,221,531.80 = 103,432,125.20/x
  3. Step 3: Cross multiply
    239,481,021.20x = 359,221,531.80 × 103,432,125.20
  4. Step 4: Simplify right side
    239,481,021.20x = 37,155,046,451,673,384
  5. Step 5: Solve for x
    x = 37,155,046,451,673,384/239,481,021.20
  6. Step 6: Final answer
    x = 155,148,187.80

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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.