Home / 21,206,179.79-29,266,903.41-12,838,161.92

Finding the Fourth Proportional to 21,206,179.79, 29,266,903.41 and 12,838,161.92

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Solution

The fourth proportional to 21,206,179.79, 29,266,903.41 and 12,838,161.92 is: 17,718,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206,179.79 : 29,266,903.41 = 12,838,161.92 : x
  2. Step 2: Convert to fraction form
    21,206,179.79/29,266,903.41 = 12,838,161.92/x
  3. Step 3: Cross multiply
    21,206,179.79x = 29,266,903.41 × 12,838,161.92
  4. Step 4: Simplify right side
    21,206,179.79x = 375,733,244,874,580.12
  5. Step 5: Solve for x
    x = 375,733,244,874,580.12/21,206,179.79
  6. Step 6: Final answer
    x = 17,718,101.45

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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.