Home / 19,642,019.72-27,105,995.09-11,386,868.06

Finding the Fourth Proportional to 19,642,019.72, 27,105,995.09 and 11,386,868.06

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Solution

The fourth proportional to 19,642,019.72, 27,105,995.09 and 11,386,868.06 is: 15,713,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642,019.72 : 27,105,995.09 = 11,386,868.06 : x
  2. Step 2: Convert to fraction form
    19,642,019.72/27,105,995.09 = 11,386,868.06/x
  3. Step 3: Cross multiply
    19,642,019.72x = 27,105,995.09 × 11,386,868.06
  4. Step 4: Simplify right side
    19,642,019.72x = 308,652,389,821,070
  5. Step 5: Solve for x
    x = 308,652,389,821,070/19,642,019.72
  6. Step 6: Final answer
    x = 15,713,882.50

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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.