Home / 526,760,738.71-726,895,728.97-288,605,596.78

Finding the Fourth Proportional to 526,760,738.71, 726,895,728.97 and 288,605,596.78

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Solution

The fourth proportional to 526,760,738.71, 726,895,728.97 and 288,605,596.78 is: 398,257,045.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,760,738.71 : 726,895,728.97 = 288,605,596.78 : x
  2. Step 2: Convert to fraction form
    526,760,738.71/726,895,728.97 = 288,605,596.78/x
  3. Step 3: Cross multiply
    526,760,738.71x = 726,895,728.97 × 288,605,596.78
  4. Step 4: Simplify right side
    526,760,738.71x = 209,786,175,656,219,968
  5. Step 5: Solve for x
    x = 209,786,175,656,219,968/526,760,738.71
  6. Step 6: Final answer
    x = 398,257,045.83

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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.