Home / 131,323,391.11-181,223,118.66-71,782,015.39

Finding the Fourth Proportional to 131,323,391.11, 181,223,118.66 and 71,782,015.39

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Solution

The fourth proportional to 131,323,391.11, 181,223,118.66 and 71,782,015.39 is: 99,057,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,323,391.11 : 181,223,118.66 = 71,782,015.39 : x
  2. Step 2: Convert to fraction form
    131,323,391.11/181,223,118.66 = 71,782,015.39/x
  3. Step 3: Cross multiply
    131,323,391.11x = 181,223,118.66 × 71,782,015.39
  4. Step 4: Simplify right side
    131,323,391.11x = 13,008,560,692,675,916
  5. Step 5: Solve for x
    x = 13,008,560,692,675,916/131,323,391.11
  6. Step 6: Final answer
    x = 99,057,453.38

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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.