Home / 1,192,309,921.71-1,788,731,624.31-363,328,443.78

Finding the Fourth Proportional to 1,192,309,921.71, 1,788,731,624.31 and 363,328,443.78

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Solution

The fourth proportional to 1,192,309,921.71, 1,788,731,624.31 and 363,328,443.78 is: 545,073,948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,309,921.71 : 1,788,731,624.31 = 363,328,443.78 : x
  2. Step 2: Convert to fraction form
    1,192,309,921.71/1,788,731,624.31 = 363,328,443.78/x
  3. Step 3: Cross multiply
    1,192,309,921.71x = 1,788,731,624.31 × 363,328,443.78
  4. Step 4: Simplify right side
    1,192,309,921.71x = 649,897,077,400,623,872
  5. Step 5: Solve for x
    x = 649,897,077,400,623,872/1,192,309,921.71
  6. Step 6: Final answer
    x = 545,073,948.95

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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.