Home / 144,140,729.89-198,911,748.77-78,060,691.21

Finding the Fourth Proportional to 144,140,729.89, 198,911,748.77 and 78,060,691.21

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Solution

The fourth proportional to 144,140,729.89, 198,911,748.77 and 78,060,691.21 is: 107,722,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140,729.89 : 198,911,748.77 = 78,060,691.21 : x
  2. Step 2: Convert to fraction form
    144,140,729.89/198,911,748.77 = 78,060,691.21/x
  3. Step 3: Cross multiply
    144,140,729.89x = 198,911,748.77 × 78,060,691.21
  4. Step 4: Simplify right side
    144,140,729.89x = 15,527,188,597,888,482
  5. Step 5: Solve for x
    x = 15,527,188,597,888,482/144,140,729.89
  6. Step 6: Final answer
    x = 107,722,422.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.