Home / 15,118,576.33-20,872,125.47-10,479,103.69

Finding the Fourth Proportional to 15,118,576.33, 20,872,125.47 and 10,479,103.69

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Solution

The fourth proportional to 15,118,576.33, 20,872,125.47 and 10,479,103.69 is: 14,467,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118,576.33 : 20,872,125.47 = 10,479,103.69 : x
  2. Step 2: Convert to fraction form
    15,118,576.33/20,872,125.47 = 10,479,103.69/x
  3. Step 3: Cross multiply
    15,118,576.33x = 20,872,125.47 × 10,479,103.69
  4. Step 4: Simplify right side
    15,118,576.33x = 218,721,166,978,424.47
  5. Step 5: Solve for x
    x = 218,721,166,978,424.47/15,118,576.33
  6. Step 6: Final answer
    x = 14,467,047.84

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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.