Home / 21,137,382.33-29,170,305.69-20,168,831.10

Finding the Fourth Proportional to 21,137,382.33, 29,170,305.69 and 20,168,831.10

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Solution

The fourth proportional to 21,137,382.33, 29,170,305.69 and 20,168,831.10 is: 27,833,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,382.33 : 29,170,305.69 = 20,168,831.10 : x
  2. Step 2: Convert to fraction form
    21,137,382.33/29,170,305.69 = 20,168,831.10/x
  3. Step 3: Cross multiply
    21,137,382.33x = 29,170,305.69 × 20,168,831.10
  4. Step 4: Simplify right side
    21,137,382.33x = 588,330,968,596,979
  5. Step 5: Solve for x
    x = 588,330,968,596,979/21,137,382.33
  6. Step 6: Final answer
    x = 27,833,672.09

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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.