Home / 20,127,573.61-30,163,428.20-9,170,986.78

Finding the Fourth Proportional to 20,127,573.61, 30,163,428.20 and 9,170,986.78

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Solution

The fourth proportional to 20,127,573.61, 30,163,428.20 and 9,170,986.78 is: 13,743,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127,573.61 : 30,163,428.20 = 9,170,986.78 : x
  2. Step 2: Convert to fraction form
    20,127,573.61/30,163,428.20 = 9,170,986.78/x
  3. Step 3: Cross multiply
    20,127,573.61x = 30,163,428.20 × 9,170,986.78
  4. Step 4: Simplify right side
    20,127,573.61x = 276,628,401,261,679.16
  5. Step 5: Solve for x
    x = 276,628,401,261,679.16/20,127,573.61
  6. Step 6: Final answer
    x = 13,743,753.05

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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.