Home / 80,255,999.40-120,383,999.10-59,818,597.80

Finding the Fourth Proportional to 80,255,999.40, 120,383,999.10 and 59,818,597.80

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Solution

The fourth proportional to 80,255,999.40, 120,383,999.10 and 59,818,597.80 is: 89,727,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,255,999.40 : 120,383,999.10 = 59,818,597.80 : x
  2. Step 2: Convert to fraction form
    80,255,999.40/120,383,999.10 = 59,818,597.80/x
  3. Step 3: Cross multiply
    80,255,999.40x = 120,383,999.10 × 59,818,597.80
  4. Step 4: Simplify right side
    80,255,999.40x = 7,201,202,023,718,461
  5. Step 5: Solve for x
    x = 7,201,202,023,718,461/80,255,999.40
  6. Step 6: Final answer
    x = 89,727,896.70

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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.