Home / 678,598,347.24-936,469,474.74-381,253,127.40

Finding the Fourth Proportional to 678,598,347.24, 936,469,474.74 and 381,253,127.40

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Solution

The fourth proportional to 678,598,347.24, 936,469,474.74 and 381,253,127.40 is: 526,131,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,598,347.24 : 936,469,474.74 = 381,253,127.40 : x
  2. Step 2: Convert to fraction form
    678,598,347.24/936,469,474.74 = 381,253,127.40/x
  3. Step 3: Cross multiply
    678,598,347.24x = 936,469,474.74 × 381,253,127.40
  4. Step 4: Simplify right side
    678,598,347.24x = 357,031,915,959,260,288
  5. Step 5: Solve for x
    x = 357,031,915,959,260,288/678,598,347.24
  6. Step 6: Final answer
    x = 526,131,425.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.