Home / 66,428,979.70-99,659,215.95-34,085,874.10

Finding the Fourth Proportional to 66,428,979.70, 99,659,215.95 and 34,085,874.10

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Solution

The fourth proportional to 66,428,979.70, 99,659,215.95 and 34,085,874.10 is: 51,136,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,979.70 : 99,659,215.95 = 34,085,874.10 : x
  2. Step 2: Convert to fraction form
    66,428,979.70/99,659,215.95 = 34,085,874.10/x
  3. Step 3: Cross multiply
    66,428,979.70x = 99,659,215.95 × 34,085,874.10
  4. Step 4: Simplify right side
    66,428,979.70x = 3,396,971,487,776,412
  5. Step 5: Solve for x
    x = 3,396,971,487,776,412/66,428,979.70
  6. Step 6: Final answer
    x = 51,136,890.90

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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.