Home / 80,623,295,998.80-120,934,943,998.20-72,786,879,589.20

Finding the Fourth Proportional to 80,623,295,998.80, 120,934,943,998.20 and 72,786,879,589.20

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Solution

The fourth proportional to 80,623,295,998.80, 120,934,943,998.20 and 72,786,879,589.20 is: 109,180,319,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,623,295,998.80 : 120,934,943,998.20 = 72,786,879,589.20 : x
  2. Step 2: Convert to fraction form
    80,623,295,998.80/120,934,943,998.20 = 72,786,879,589.20/x
  3. Step 3: Cross multiply
    80,623,295,998.80x = 120,934,943,998.20 × 72,786,879,589.20
  4. Step 4: Simplify right side
    80,623,295,998.80x = 8,802,477,206,923,628,249,088
  5. Step 5: Solve for x
    x = 8,802,477,206,923,628,249,088/80,623,295,998.80
  6. Step 6: Final answer
    x = 109,180,319,383.80

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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.