Home / 27,776,561.82-38,330,015.20-15,215,118.22

Finding the Fourth Proportional to 27,776,561.82, 38,330,015.20 and 15,215,118.22

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Solution

The fourth proportional to 27,776,561.82, 38,330,015.20 and 15,215,118.22 is: 20,995,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,776,561.82 : 38,330,015.20 = 15,215,118.22 : x
  2. Step 2: Convert to fraction form
    27,776,561.82/38,330,015.20 = 15,215,118.22/x
  3. Step 3: Cross multiply
    27,776,561.82x = 38,330,015.20 × 15,215,118.22
  4. Step 4: Simplify right side
    27,776,561.82x = 583,195,712,642,397
  5. Step 5: Solve for x
    x = 583,195,712,642,397/27,776,561.82
  6. Step 6: Final answer
    x = 20,995,964.74

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Double scale
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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.