Home / 139,583,760.20-192,627,014.56-76,865,690.44

Finding the Fourth Proportional to 139,583,760.20, 192,627,014.56 and 76,865,690.44

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Solution

The fourth proportional to 139,583,760.20, 192,627,014.56 and 76,865,690.44 is: 106,075,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,583,760.20 : 192,627,014.56 = 76,865,690.44 : x
  2. Step 2: Convert to fraction form
    139,583,760.20/192,627,014.56 = 76,865,690.44/x
  3. Step 3: Cross multiply
    139,583,760.20x = 192,627,014.56 × 76,865,690.44
  4. Step 4: Simplify right side
    139,583,760.20x = 14,806,408,471,598,952
  5. Step 5: Solve for x
    x = 14,806,408,471,598,952/139,583,760.20
  6. Step 6: Final answer
    x = 106,075,437.79

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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.