Home / 13,718,628.18-18,930,342.33-7,919,278.27

Finding the Fourth Proportional to 13,718,628.18, 18,930,342.33 and 7,919,278.27

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Solution

The fourth proportional to 13,718,628.18, 18,930,342.33 and 7,919,278.27 is: 10,927,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,628.18 : 18,930,342.33 = 7,919,278.27 : x
  2. Step 2: Convert to fraction form
    13,718,628.18/18,930,342.33 = 7,919,278.27/x
  3. Step 3: Cross multiply
    13,718,628.18x = 18,930,342.33 × 7,919,278.27
  4. Step 4: Simplify right side
    13,718,628.18x = 149,914,648,610,304.31
  5. Step 5: Solve for x
    x = 149,914,648,610,304.31/13,718,628.18
  6. Step 6: Final answer
    x = 10,927,816.30

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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.