Home / 144,012,440.97-198,737,162.42-77,932,941.28

Finding the Fourth Proportional to 144,012,440.97, 198,737,162.42 and 77,932,941.28

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Solution

The fourth proportional to 144,012,440.97, 198,737,162.42 and 77,932,941.28 is: 107,547,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012,440.97 : 198,737,162.42 = 77,932,941.28 : x
  2. Step 2: Convert to fraction form
    144,012,440.97/198,737,162.42 = 77,932,941.28/x
  3. Step 3: Cross multiply
    144,012,440.97x = 198,737,162.42 × 77,932,941.28
  4. Step 4: Simplify right side
    144,012,440.97x = 15,488,171,608,145,176
  5. Step 5: Solve for x
    x = 15,488,171,608,145,176/144,012,440.97
  6. Step 6: Final answer
    x = 107,547,455.65

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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.