Home / 19,080,438.26-28,620,365.79-7,712,820.50

Finding the Fourth Proportional to 19,080,438.26, 28,620,365.79 and 7,712,820.50

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Solution

The fourth proportional to 19,080,438.26, 28,620,365.79 and 7,712,820.50 is: 11,569,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080,438.26 : 28,620,365.79 = 7,712,820.50 : x
  2. Step 2: Convert to fraction form
    19,080,438.26/28,620,365.79 = 7,712,820.50/x
  3. Step 3: Cross multiply
    19,080,438.26x = 28,620,365.79 × 7,712,820.50
  4. Step 4: Simplify right side
    19,080,438.26x = 220,743,743,982,610.69
  5. Step 5: Solve for x
    x = 220,743,743,982,610.69/19,080,438.26
  6. Step 6: Final answer
    x = 11,569,112.88

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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.