Home / 47,921,343.80-71,882,015.70-19,188,100.40

Finding the Fourth Proportional to 47,921,343.80, 71,882,015.70 and 19,188,100.40

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Solution

The fourth proportional to 47,921,343.80, 71,882,015.70 and 19,188,100.40 is: 28,782,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921,343.80 : 71,882,015.70 = 19,188,100.40 : x
  2. Step 2: Convert to fraction form
    47,921,343.80/71,882,015.70 = 19,188,100.40/x
  3. Step 3: Cross multiply
    47,921,343.80x = 71,882,015.70 × 19,188,100.40
  4. Step 4: Simplify right side
    47,921,343.80x = 1,379,279,334,205,976.25
  5. Step 5: Solve for x
    x = 1,379,279,334,205,976.25/47,921,343.80
  6. Step 6: Final answer
    x = 28,782,150.60

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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.