Home / 66,428,980.20-99,659,216.70-34,085,874.60

Finding the Fourth Proportional to 66,428,980.20, 99,659,216.70 and 34,085,874.60

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Solution

The fourth proportional to 66,428,980.20, 99,659,216.70 and 34,085,874.60 is: 51,136,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,980.20 : 99,659,216.70 = 34,085,874.60 : x
  2. Step 2: Convert to fraction form
    66,428,980.20/99,659,216.70 = 34,085,874.60/x
  3. Step 3: Cross multiply
    66,428,980.20x = 99,659,216.70 × 34,085,874.60
  4. Step 4: Simplify right side
    66,428,980.20x = 3,396,971,563,170,426
  5. Step 5: Solve for x
    x = 3,396,971,563,170,426/66,428,980.20
  6. Step 6: Final answer
    x = 51,136,891.65

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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.