Home / 18,218,758.63-25,141,888.10-9,958,853.63

Finding the Fourth Proportional to 18,218,758.63, 25,141,888.10 and 9,958,853.63

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Solution

The fourth proportional to 18,218,758.63, 25,141,888.10 and 9,958,853.63 is: 13,743,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218,758.63 : 25,141,888.10 = 9,958,853.63 : x
  2. Step 2: Convert to fraction form
    18,218,758.63/25,141,888.10 = 9,958,853.63/x
  3. Step 3: Cross multiply
    18,218,758.63x = 25,141,888.10 × 9,958,853.63
  4. Step 4: Simplify right side
    18,218,758.63x = 250,384,383,569,738.84
  5. Step 5: Solve for x
    x = 250,384,383,569,738.84/18,218,758.63
  6. Step 6: Final answer
    x = 13,743,218.66

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1.5x scale

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.