Home / 21,169,459.35-29,215,614.69-11,751,136.79

Finding the Fourth Proportional to 21,169,459.35, 29,215,614.69 and 11,751,136.79

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Solution

The fourth proportional to 21,169,459.35, 29,215,614.69 and 11,751,136.79 is: 16,217,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169,459.35 : 29,215,614.69 = 11,751,136.79 : x
  2. Step 2: Convert to fraction form
    21,169,459.35/29,215,614.69 = 11,751,136.79/x
  3. Step 3: Cross multiply
    21,169,459.35x = 29,215,614.69 × 11,751,136.79
  4. Step 4: Simplify right side
    21,169,459.35x = 343,316,684,480,045.38
  5. Step 5: Solve for x
    x = 343,316,684,480,045.38/21,169,459.35
  6. Step 6: Final answer
    x = 16,217,546.17

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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.