Home / 13,299,090.09-19,919,766.73-8,165,938.65

Finding the Fourth Proportional to 13,299,090.09, 19,919,766.73 and 8,165,938.65

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Solution

The fourth proportional to 13,299,090.09, 19,919,766.73 and 8,165,938.65 is: 12,231,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299,090.09 : 19,919,766.73 = 8,165,938.65 : x
  2. Step 2: Convert to fraction form
    13,299,090.09/19,919,766.73 = 8,165,938.65/x
  3. Step 3: Cross multiply
    13,299,090.09x = 19,919,766.73 × 8,165,938.65
  4. Step 4: Simplify right side
    13,299,090.09x = 162,663,593,039,491.12
  5. Step 5: Solve for x
    x = 162,663,593,039,491.12/13,299,090.09
  6. Step 6: Final answer
    x = 12,231,182.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.