Home / 282,103,678.20-423,155,517.30-261,696,343.80

Finding the Fourth Proportional to 282,103,678.20, 423,155,517.30 and 261,696,343.80

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Solution

The fourth proportional to 282,103,678.20, 423,155,517.30 and 261,696,343.80 is: 392,544,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,103,678.20 : 423,155,517.30 = 261,696,343.80 : x
  2. Step 2: Convert to fraction form
    282,103,678.20/423,155,517.30 = 261,696,343.80/x
  3. Step 3: Cross multiply
    282,103,678.20x = 423,155,517.30 × 261,696,343.80
  4. Step 4: Simplify right side
    282,103,678.20x = 110,738,251,736,207,648
  5. Step 5: Solve for x
    x = 110,738,251,736,207,648/282,103,678.20
  6. Step 6: Final answer
    x = 392,544,515.70

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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.