Home / 10,011,895.20-15,014,343.60-5,217,991.20

Finding the Fourth Proportional to 10,011,895.20, 15,014,343.60 and 5,217,991.20

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Solution

The fourth proportional to 10,011,895.20, 15,014,343.60 and 5,217,991.20 is: 7,825,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011,895.20 : 15,014,343.60 = 5,217,991.20 : x
  2. Step 2: Convert to fraction form
    10,011,895.20/15,014,343.60 = 5,217,991.20/x
  3. Step 3: Cross multiply
    10,011,895.20x = 15,014,343.60 × 5,217,991.20
  4. Step 4: Simplify right side
    10,011,895.20x = 78,344,712,778,576.33
  5. Step 5: Solve for x
    x = 78,344,712,778,576.33/10,011,895.20
  6. Step 6: Final answer
    x = 7,825,163.09

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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.