Home / 13,191,869.97-18,209,864.68-12,827,832.89

Finding the Fourth Proportional to 13,191,869.97, 18,209,864.68 and 12,827,832.89

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Solution

The fourth proportional to 13,191,869.97, 18,209,864.68 and 12,827,832.89 is: 17,707,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,869.97 : 18,209,864.68 = 12,827,832.89 : x
  2. Step 2: Convert to fraction form
    13,191,869.97/18,209,864.68 = 12,827,832.89/x
  3. Step 3: Cross multiply
    13,191,869.97x = 18,209,864.68 × 12,827,832.89
  4. Step 4: Simplify right side
    13,191,869.97x = 233,593,100,941,434.41
  5. Step 5: Solve for x
    x = 233,593,100,941,434.41/13,191,869.97
  6. Step 6: Final answer
    x = 17,707,353.20

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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.