Home / 15,344,148.78-21,174,821.01-8,468,630.64

Finding the Fourth Proportional to 15,344,148.78, 21,174,821.01 and 8,468,630.64

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Solution

The fourth proportional to 15,344,148.78, 21,174,821.01 and 8,468,630.64 is: 11,686,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344,148.78 : 21,174,821.01 = 8,468,630.64 : x
  2. Step 2: Convert to fraction form
    15,344,148.78/21,174,821.01 = 8,468,630.64/x
  3. Step 3: Cross multiply
    15,344,148.78x = 21,174,821.01 × 8,468,630.64
  4. Step 4: Simplify right side
    15,344,148.78x = 179,321,738,001,801.78
  5. Step 5: Solve for x
    x = 179,321,738,001,801.78/15,344,148.78
  6. Step 6: Final answer
    x = 11,686,652.72

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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.