Home / 20,083,146.66-27,728,089.02-15,428,642.04

Finding the Fourth Proportional to 20,083,146.66, 27,728,089.02 and 15,428,642.04

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Solution

The fourth proportional to 20,083,146.66, 27,728,089.02 and 15,428,642.04 is: 21,301,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083,146.66 : 27,728,089.02 = 15,428,642.04 : x
  2. Step 2: Convert to fraction form
    20,083,146.66/27,728,089.02 = 15,428,642.04/x
  3. Step 3: Cross multiply
    20,083,146.66x = 27,728,089.02 × 15,428,642.04
  4. Step 4: Simplify right side
    20,083,146.66x = 427,806,759,942,834.38
  5. Step 5: Solve for x
    x = 427,806,759,942,834.38/20,083,146.66
  6. Step 6: Final answer
    x = 21,301,779.41

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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.