Home / 80,605,152.36-120,836,142.30-31,409,615.40

Finding the Fourth Proportional to 80,605,152.36, 120,836,142.30 and 31,409,615.40

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Solution

The fourth proportional to 80,605,152.36, 120,836,142.30 and 31,409,615.40 is: 47,086,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,605,152.36 : 120,836,142.30 = 31,409,615.40 : x
  2. Step 2: Convert to fraction form
    80,605,152.36/120,836,142.30 = 31,409,615.40/x
  3. Step 3: Cross multiply
    80,605,152.36x = 120,836,142.30 × 31,409,615.40
  4. Step 4: Simplify right side
    80,605,152.36x = 3,795,416,756,062,671
  5. Step 5: Solve for x
    x = 3,795,416,756,062,671/80,605,152.36
  6. Step 6: Final answer
    x = 47,086,527.91

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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.