Home / 77,921,446.32-116,649,147.27-47,122,816.50

Finding the Fourth Proportional to 77,921,446.32, 116,649,147.27 and 47,122,816.50

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Solution

The fourth proportional to 77,921,446.32, 116,649,147.27 and 47,122,816.50 is: 70,543,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,921,446.32 : 116,649,147.27 = 47,122,816.50 : x
  2. Step 2: Convert to fraction form
    77,921,446.32/116,649,147.27 = 47,122,816.50/x
  3. Step 3: Cross multiply
    77,921,446.32x = 116,649,147.27 × 47,122,816.50
  4. Step 4: Simplify right side
    77,921,446.32x = 5,496,836,361,685,686
  5. Step 5: Solve for x
    x = 5,496,836,361,685,686/77,921,446.32
  6. Step 6: Final answer
    x = 70,543,305.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.