Home / 15,191,576.78-20,964,516.03-8,996,975.83

Finding the Fourth Proportional to 15,191,576.78, 20,964,516.03 and 8,996,975.83

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Solution

The fourth proportional to 15,191,576.78, 20,964,516.03 and 8,996,975.83 is: 12,415,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,576.78 : 20,964,516.03 = 8,996,975.83 : x
  2. Step 2: Convert to fraction form
    15,191,576.78/20,964,516.03 = 8,996,975.83/x
  3. Step 3: Cross multiply
    15,191,576.78x = 20,964,516.03 × 8,996,975.83
  4. Step 4: Simplify right side
    15,191,576.78x = 188,617,244,009,557.56
  5. Step 5: Solve for x
    x = 188,617,244,009,557.56/15,191,576.78
  6. Step 6: Final answer
    x = 12,415,909.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.