Home / 12,438,386.31-17,164,218.01-6,856,388.19

Finding the Fourth Proportional to 12,438,386.31, 17,164,218.01 and 6,856,388.19

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Solution

The fourth proportional to 12,438,386.31, 17,164,218.01 and 6,856,388.19 is: 9,461,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,386.31 : 17,164,218.01 = 6,856,388.19 : x
  2. Step 2: Convert to fraction form
    12,438,386.31/17,164,218.01 = 6,856,388.19/x
  3. Step 3: Cross multiply
    12,438,386.31x = 17,164,218.01 × 6,856,388.19
  4. Step 4: Simplify right side
    12,438,386.31x = 117,684,541,654,349.31
  5. Step 5: Solve for x
    x = 117,684,541,654,349.31/12,438,386.31
  6. Step 6: Final answer
    x = 9,461,399.47

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Double scale
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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.