Home / 7,881,615.20-11,822,422.80-5,188,980.80

Finding the Fourth Proportional to 7,881,615.20, 11,822,422.80 and 5,188,980.80

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Solution

The fourth proportional to 7,881,615.20, 11,822,422.80 and 5,188,980.80 is: 7,783,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,615.20 : 11,822,422.80 = 5,188,980.80 : x
  2. Step 2: Convert to fraction form
    7,881,615.20/11,822,422.80 = 5,188,980.80/x
  3. Step 3: Cross multiply
    7,881,615.20x = 11,822,422.80 × 5,188,980.80
  4. Step 4: Simplify right side
    7,881,615.20x = 61,346,324,918,682.24
  5. Step 5: Solve for x
    x = 61,346,324,918,682.24/7,881,615.20
  6. Step 6: Final answer
    x = 7,783,471.20

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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.