Home / 144,146,501.20-198,921,185.82-78,065,479.72

Finding the Fourth Proportional to 144,146,501.20, 198,921,185.82 and 78,065,479.72

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Solution

The fourth proportional to 144,146,501.20, 198,921,185.82 and 78,065,479.72 is: 107,729,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146,501.20 : 198,921,185.82 = 78,065,479.72 : x
  2. Step 2: Convert to fraction form
    144,146,501.20/198,921,185.82 = 78,065,479.72/x
  3. Step 3: Cross multiply
    144,146,501.20x = 198,921,185.82 × 78,065,479.72
  4. Step 4: Simplify right side
    144,146,501.20x = 15,528,877,797,509,560
  5. Step 5: Solve for x
    x = 15,528,877,797,509,560/144,146,501.20
  6. Step 6: Final answer
    x = 107,729,828.11

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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.