Home / 186,865,857.80-280,399,174.86-77,766,245

Finding the Fourth Proportional to 186,865,857.80, 280,399,174.86 and 77,766,245

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Solution

The fourth proportional to 186,865,857.80, 280,399,174.86 and 77,766,245 is: 116,691,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,865,857.80 : 280,399,174.86 = 77,766,245 : x
  2. Step 2: Convert to fraction form
    186,865,857.80/280,399,174.86 = 77,766,245/x
  3. Step 3: Cross multiply
    186,865,857.80x = 280,399,174.86 × 77,766,245
  4. Step 4: Simplify right side
    186,865,857.80x = 21,805,590,929,960,600
  5. Step 5: Solve for x
    x = 21,805,590,929,960,600/186,865,857.80
  6. Step 6: Final answer
    x = 116,691,145.12

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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.