Home / 125,640,329.10-188,614,021.05-71,090,862.90

Finding the Fourth Proportional to 125,640,329.10, 188,614,021.05 and 71,090,862.90

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Solution

The fourth proportional to 125,640,329.10, 188,614,021.05 and 71,090,862.90 is: 106,723,164.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,640,329.10 : 188,614,021.05 = 71,090,862.90 : x
  2. Step 2: Convert to fraction form
    125,640,329.10/188,614,021.05 = 71,090,862.90/x
  3. Step 3: Cross multiply
    125,640,329.10x = 188,614,021.05 × 71,090,862.90
  4. Step 4: Simplify right side
    125,640,329.10x = 13,408,733,511,483,266
  5. Step 5: Solve for x
    x = 13,408,733,511,483,266/125,640,329.10
  6. Step 6: Final answer
    x = 106,723,164.51

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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.