Home / 13,324,541.33-18,387,993.72-7,818,009.86

Finding the Fourth Proportional to 13,324,541.33, 18,387,993.72 and 7,818,009.86

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Solution

The fourth proportional to 13,324,541.33, 18,387,993.72 and 7,818,009.86 is: 10,788,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324,541.33 : 18,387,993.72 = 7,818,009.86 : x
  2. Step 2: Convert to fraction form
    13,324,541.33/18,387,993.72 = 7,818,009.86/x
  3. Step 3: Cross multiply
    13,324,541.33x = 18,387,993.72 × 7,818,009.86
  4. Step 4: Simplify right side
    13,324,541.33x = 143,757,516,116,638.12
  5. Step 5: Solve for x
    x = 143,757,516,116,638.12/13,324,541.33
  6. Step 6: Final answer
    x = 10,788,927.93

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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.