Home / 144,012,458.41-198,737,186.49-77,932,958.72

Finding the Fourth Proportional to 144,012,458.41, 198,737,186.49 and 77,932,958.72

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Solution

The fourth proportional to 144,012,458.41, 198,737,186.49 and 77,932,958.72 is: 107,547,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012,458.41 : 198,737,186.49 = 77,932,958.72 : x
  2. Step 2: Convert to fraction form
    144,012,458.41/198,737,186.49 = 77,932,958.72/x
  3. Step 3: Cross multiply
    144,012,458.41x = 198,737,186.49 × 77,932,958.72
  4. Step 4: Simplify right side
    144,012,458.41x = 15,488,176,949,860,428
  5. Step 5: Solve for x
    x = 15,488,176,949,860,428/144,012,458.41
  6. Step 6: Final answer
    x = 107,547,479.72

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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.