Home / 139,524,847-192,562,623.48-80,009,433.70

Finding the Fourth Proportional to 139,524,847, 192,562,623.48 and 80,009,433.70

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Solution

The fourth proportional to 139,524,847, 192,562,623.48 and 80,009,433.70 is: 110,423,532.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,524,847 : 192,562,623.48 = 80,009,433.70 : x
  2. Step 2: Convert to fraction form
    139,524,847/192,562,623.48 = 80,009,433.70/x
  3. Step 3: Cross multiply
    139,524,847x = 192,562,623.48 × 80,009,433.70
  4. Step 4: Simplify right side
    139,524,847x = 15,406,826,456,421,122
  5. Step 5: Solve for x
    x = 15,406,826,456,421,122/139,524,847
  6. Step 6: Final answer
    x = 110,423,532.35

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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.