Home / 865,885,011.75-1,299,044,079.27-252,469,237.50

Finding the Fourth Proportional to 865,885,011.75, 1,299,044,079.27 and 252,469,237.50

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Solution

The fourth proportional to 865,885,011.75, 1,299,044,079.27 and 252,469,237.50 is: 378,766,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,885,011.75 : 1,299,044,079.27 = 252,469,237.50 : x
  2. Step 2: Convert to fraction form
    865,885,011.75/1,299,044,079.27 = 252,469,237.50/x
  3. Step 3: Cross multiply
    865,885,011.75x = 1,299,044,079.27 × 252,469,237.50
  4. Step 4: Simplify right side
    865,885,011.75x = 327,968,668,172,186,432
  5. Step 5: Solve for x
    x = 327,968,668,172,186,432/865,885,011.75
  6. Step 6: Final answer
    x = 378,766,999.92

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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.