Home / 144,146,500.20-198,921,184.44-78,065,478.72

Finding the Fourth Proportional to 144,146,500.20, 198,921,184.44 and 78,065,478.72

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Solution

The fourth proportional to 144,146,500.20, 198,921,184.44 and 78,065,478.72 is: 107,729,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146,500.20 : 198,921,184.44 = 78,065,478.72 : x
  2. Step 2: Convert to fraction form
    144,146,500.20/198,921,184.44 = 78,065,478.72/x
  3. Step 3: Cross multiply
    144,146,500.20x = 198,921,184.44 × 78,065,478.72
  4. Step 4: Simplify right side
    144,146,500.20x = 15,528,877,490,858,014
  5. Step 5: Solve for x
    x = 15,528,877,490,858,014/144,146,500.20
  6. Step 6: Final answer
    x = 107,729,826.73

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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.