Home / 144,140,729.14-198,911,747.73-78,060,690.46

Finding the Fourth Proportional to 144,140,729.14, 198,911,747.73 and 78,060,690.46

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Solution

The fourth proportional to 144,140,729.14, 198,911,747.73 and 78,060,690.46 is: 107,722,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140,729.14 : 198,911,747.73 = 78,060,690.46 : x
  2. Step 2: Convert to fraction form
    144,140,729.14/198,911,747.73 = 78,060,690.46/x
  3. Step 3: Cross multiply
    144,140,729.14x = 198,911,747.73 × 78,060,690.46
  4. Step 4: Simplify right side
    144,140,729.14x = 15,527,188,367,911,856
  5. Step 5: Solve for x
    x = 15,527,188,367,911,856/144,140,729.14
  6. Step 6: Final answer
    x = 107,722,421.42

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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.