Home / 21,047,771.13-29,045,924.16-11,389,979.13

Finding the Fourth Proportional to 21,047,771.13, 29,045,924.16 and 11,389,979.13

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Solution

The fourth proportional to 21,047,771.13, 29,045,924.16 and 11,389,979.13 is: 15,718,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047,771.13 : 29,045,924.16 = 11,389,979.13 : x
  2. Step 2: Convert to fraction form
    21,047,771.13/29,045,924.16 = 11,389,979.13/x
  3. Step 3: Cross multiply
    21,047,771.13x = 29,045,924.16 × 11,389,979.13
  4. Step 4: Simplify right side
    21,047,771.13x = 330,832,469,993,962.81
  5. Step 5: Solve for x
    x = 330,832,469,993,962.81/21,047,771.13
  6. Step 6: Final answer
    x = 15,718,171.20

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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.