Home / 129,007,014.13-192,535,888.52-120,259,778.38

Finding the Fourth Proportional to 129,007,014.13, 192,535,888.52 and 120,259,778.38

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Solution

The fourth proportional to 129,007,014.13, 192,535,888.52 and 120,259,778.38 is: 179,481,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,007,014.13 : 192,535,888.52 = 120,259,778.38 : x
  2. Step 2: Convert to fraction form
    129,007,014.13/192,535,888.52 = 120,259,778.38/x
  3. Step 3: Cross multiply
    129,007,014.13x = 192,535,888.52 × 120,259,778.38
  4. Step 4: Simplify right side
    129,007,014.13x = 23,154,323,283,611,588
  5. Step 5: Solve for x
    x = 23,154,323,283,611,588/129,007,014.13
  6. Step 6: Final answer
    x = 179,481,119.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.