Home / 391,108,906.80-586,663,360.20-255,060,010.80

Finding the Fourth Proportional to 391,108,906.80, 586,663,360.20 and 255,060,010.80

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Solution

The fourth proportional to 391,108,906.80, 586,663,360.20 and 255,060,010.80 is: 382,590,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,108,906.80 : 586,663,360.20 = 255,060,010.80 : x
  2. Step 2: Convert to fraction form
    391,108,906.80/586,663,360.20 = 255,060,010.80/x
  3. Step 3: Cross multiply
    391,108,906.80x = 586,663,360.20 × 255,060,010.80
  4. Step 4: Simplify right side
    391,108,906.80x = 149,634,362,988,576,320
  5. Step 5: Solve for x
    x = 149,634,362,988,576,320/391,108,906.80
  6. Step 6: Final answer
    x = 382,590,016.20

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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.