Home / 161,819,107.20-242,728,660.80-159,131,721.60

Finding the Fourth Proportional to 161,819,107.20, 242,728,660.80 and 159,131,721.60

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Solution

The fourth proportional to 161,819,107.20, 242,728,660.80 and 159,131,721.60 is: 238,697,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,819,107.20 : 242,728,660.80 = 159,131,721.60 : x
  2. Step 2: Convert to fraction form
    161,819,107.20/242,728,660.80 = 159,131,721.60/x
  3. Step 3: Cross multiply
    161,819,107.20x = 242,728,660.80 × 159,131,721.60
  4. Step 4: Simplify right side
    161,819,107.20x = 38,625,829,674,766,432
  5. Step 5: Solve for x
    x = 38,625,829,674,766,432/161,819,107.20
  6. Step 6: Final answer
    x = 238,697,582.40

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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.