Home / 20,229,616.96-27,919,428.06-13,266,152.94

Finding the Fourth Proportional to 20,229,616.96, 27,919,428.06 and 13,266,152.94

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Solution

The fourth proportional to 20,229,616.96, 27,919,428.06 and 13,266,152.94 is: 18,308,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,616.96 : 27,919,428.06 = 13,266,152.94 : x
  2. Step 2: Convert to fraction form
    20,229,616.96/27,919,428.06 = 13,266,152.94/x
  3. Step 3: Cross multiply
    20,229,616.96x = 27,919,428.06 × 13,266,152.94
  4. Step 4: Simplify right side
    20,229,616.96x = 370,383,402,641,287.44
  5. Step 5: Solve for x
    x = 370,383,402,641,287.44/20,229,616.96
  6. Step 6: Final answer
    x = 18,308,967.66

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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.