Home / 100,314,389.10-138,375,064.62-63,085,618.38

Finding the Fourth Proportional to 100,314,389.10, 138,375,064.62 and 63,085,618.38

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Solution

The fourth proportional to 100,314,389.10, 138,375,064.62 and 63,085,618.38 is: 87,021,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,314,389.10 : 138,375,064.62 = 63,085,618.38 : x
  2. Step 2: Convert to fraction form
    100,314,389.10/138,375,064.62 = 63,085,618.38/x
  3. Step 3: Cross multiply
    100,314,389.10x = 138,375,064.62 × 63,085,618.38
  4. Step 4: Simplify right side
    100,314,389.10x = 8,729,476,519,925,160
  5. Step 5: Solve for x
    x = 8,729,476,519,925,160/100,314,389.10
  6. Step 6: Final answer
    x = 87,021,180.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.