Home / 12,561,623.10-18,842,434.65-11,721,815.10

Finding the Fourth Proportional to 12,561,623.10, 18,842,434.65 and 11,721,815.10

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Solution

The fourth proportional to 12,561,623.10, 18,842,434.65 and 11,721,815.10 is: 17,582,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561,623.10 : 18,842,434.65 = 11,721,815.10 : x
  2. Step 2: Convert to fraction form
    12,561,623.10/18,842,434.65 = 11,721,815.10/x
  3. Step 3: Cross multiply
    12,561,623.10x = 18,842,434.65 × 11,721,815.10
  4. Step 4: Simplify right side
    12,561,623.10x = 220,867,535,001,133.19
  5. Step 5: Solve for x
    x = 220,867,535,001,133.19/12,561,623.10
  6. Step 6: Final answer
    x = 17,582,722.65

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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.