Home / 12,087,548.30-18,131,322.45-10,512,908.30

Finding the Fourth Proportional to 12,087,548.30, 18,131,322.45 and 10,512,908.30

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Solution

The fourth proportional to 12,087,548.30, 18,131,322.45 and 10,512,908.30 is: 15,769,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087,548.30 : 18,131,322.45 = 10,512,908.30 : x
  2. Step 2: Convert to fraction form
    12,087,548.30/18,131,322.45 = 10,512,908.30/x
  3. Step 3: Cross multiply
    12,087,548.30x = 18,131,322.45 × 10,512,908.30
  4. Step 4: Simplify right side
    12,087,548.30x = 190,612,930,274,581.34
  5. Step 5: Solve for x
    x = 190,612,930,274,581.34/12,087,548.30
  6. Step 6: Final answer
    x = 15,769,362.45

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Double scale
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Similar ratio
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1.5x scale

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.