Home / 80,454,863.90-120,682,295.85-72,392,707.10

Finding the Fourth Proportional to 80,454,863.90, 120,682,295.85 and 72,392,707.10

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Solution

The fourth proportional to 80,454,863.90, 120,682,295.85 and 72,392,707.10 is: 108,589,060.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,454,863.90 : 120,682,295.85 = 72,392,707.10 : x
  2. Step 2: Convert to fraction form
    80,454,863.90/120,682,295.85 = 72,392,707.10/x
  3. Step 3: Cross multiply
    80,454,863.90x = 120,682,295.85 × 72,392,707.10
  4. Step 4: Simplify right side
    80,454,863.90x = 8,736,518,095,624,594
  5. Step 5: Solve for x
    x = 8,736,518,095,624,594/80,454,863.90
  6. Step 6: Final answer
    x = 108,589,060.65

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1.5x scale

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.