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Finding the Fourth Proportional to 67,144,449.60, 100,716,674.40 and 21,738,830.40

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Solution

The fourth proportional to 67,144,449.60, 100,716,674.40 and 21,738,830.40 is: 32,608,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,144,449.60 : 100,716,674.40 = 21,738,830.40 : x
  2. Step 2: Convert to fraction form
    67,144,449.60/100,716,674.40 = 21,738,830.40/x
  3. Step 3: Cross multiply
    67,144,449.60x = 100,716,674.40 × 21,738,830.40
  4. Step 4: Simplify right side
    67,144,449.60x = 2,189,462,703,233,621.75
  5. Step 5: Solve for x
    x = 2,189,462,703,233,621.75/67,144,449.60
  6. Step 6: Final answer
    x = 32,608,245.60

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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.