Home / 101,445,640.38-139,985,730.09-57,396,661.02

Finding the Fourth Proportional to 101,445,640.38, 139,985,730.09 and 57,396,661.02

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Solution

The fourth proportional to 101,445,640.38, 139,985,730.09 and 57,396,661.02 is: 79,202,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,445,640.38 : 139,985,730.09 = 57,396,661.02 : x
  2. Step 2: Convert to fraction form
    101,445,640.38/139,985,730.09 = 57,396,661.02/x
  3. Step 3: Cross multiply
    101,445,640.38x = 139,985,730.09 × 57,396,661.02
  4. Step 4: Simplify right side
    101,445,640.38x = 8,034,713,497,612,945
  5. Step 5: Solve for x
    x = 8,034,713,497,612,945/101,445,640.38
  6. Step 6: Final answer
    x = 79,202,156.62

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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.