Home / 66,428,977.20-99,659,212.20-34,085,871.60

Finding the Fourth Proportional to 66,428,977.20, 99,659,212.20 and 34,085,871.60

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Solution

The fourth proportional to 66,428,977.20, 99,659,212.20 and 34,085,871.60 is: 51,136,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,977.20 : 99,659,212.20 = 34,085,871.60 : x
  2. Step 2: Convert to fraction form
    66,428,977.20/99,659,212.20 = 34,085,871.60/x
  3. Step 3: Cross multiply
    66,428,977.20x = 99,659,212.20 × 34,085,871.60
  4. Step 4: Simplify right side
    66,428,977.20x = 3,396,971,110,806,354
  5. Step 5: Solve for x
    x = 3,396,971,110,806,354/66,428,977.20
  6. Step 6: Final answer
    x = 51,136,887.15

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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.