Home / 80,724,015.60-121,086,023.40-80,220,130.80

Finding the Fourth Proportional to 80,724,015.60, 121,086,023.40 and 80,220,130.80

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Solution

The fourth proportional to 80,724,015.60, 121,086,023.40 and 80,220,130.80 is: 120,330,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,724,015.60 : 121,086,023.40 = 80,220,130.80 : x
  2. Step 2: Convert to fraction form
    80,724,015.60/121,086,023.40 = 80,220,130.80/x
  3. Step 3: Cross multiply
    80,724,015.60x = 121,086,023.40 × 80,220,130.80
  4. Step 4: Simplify right side
    80,724,015.60x = 9,713,536,635,199,860
  5. Step 5: Solve for x
    x = 9,713,536,635,199,860/80,724,015.60
  6. Step 6: Final answer
    x = 120,330,196.20

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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.