Home / 143,988,447.76-198,703,929.51-81,277,745.56

Finding the Fourth Proportional to 143,988,447.76, 198,703,929.51 and 81,277,745.56

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Solution

The fourth proportional to 143,988,447.76, 198,703,929.51 and 81,277,745.56 is: 112,163,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,988,447.76 : 198,703,929.51 = 81,277,745.56 : x
  2. Step 2: Convert to fraction form
    143,988,447.76/198,703,929.51 = 81,277,745.56/x
  3. Step 3: Cross multiply
    143,988,447.76x = 198,703,929.51 × 81,277,745.56
  4. Step 4: Simplify right side
    143,988,447.76x = 16,150,207,424,485,956
  5. Step 5: Solve for x
    x = 16,150,207,424,485,956/143,988,447.76
  6. Step 6: Final answer
    x = 112,163,216.40

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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.