Home / 391,108,910.80-586,663,366.20-255,060,014.80

Finding the Fourth Proportional to 391,108,910.80, 586,663,366.20 and 255,060,014.80

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Solution

The fourth proportional to 391,108,910.80, 586,663,366.20 and 255,060,014.80 is: 382,590,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,108,910.80 : 586,663,366.20 = 255,060,014.80 : x
  2. Step 2: Convert to fraction form
    391,108,910.80/586,663,366.20 = 255,060,014.80/x
  3. Step 3: Cross multiply
    391,108,910.80x = 586,663,366.20 × 255,060,014.80
  4. Step 4: Simplify right side
    391,108,910.80x = 149,634,366,865,589,824
  5. Step 5: Solve for x
    x = 149,634,366,865,589,824/391,108,910.80
  6. Step 6: Final answer
    x = 382,590,022.20

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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.