Home / 18,809,338.74-25,930,648.71-12,615,492.30

Finding the Fourth Proportional to 18,809,338.74, 25,930,648.71 and 12,615,492.30

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Solution

The fourth proportional to 18,809,338.74, 25,930,648.71 and 12,615,492.30 is: 17,391,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,338.74 : 25,930,648.71 = 12,615,492.30 : x
  2. Step 2: Convert to fraction form
    18,809,338.74/25,930,648.71 = 12,615,492.30/x
  3. Step 3: Cross multiply
    18,809,338.74x = 25,930,648.71 × 12,615,492.30
  4. Step 4: Simplify right side
    18,809,338.74x = 327,127,899,135,009.94
  5. Step 5: Solve for x
    x = 327,127,899,135,009.94/18,809,338.74
  6. Step 6: Final answer
    x = 17,391,780.95

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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.