Home / 20,845,837.89-28,767,259.06-11,554,007.20

Finding the Fourth Proportional to 20,845,837.89, 28,767,259.06 and 11,554,007.20

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Solution

The fourth proportional to 20,845,837.89, 28,767,259.06 and 11,554,007.20 is: 15,944,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845,837.89 : 28,767,259.06 = 11,554,007.20 : x
  2. Step 2: Convert to fraction form
    20,845,837.89/28,767,259.06 = 11,554,007.20/x
  3. Step 3: Cross multiply
    20,845,837.89x = 28,767,259.06 × 11,554,007.20
  4. Step 4: Simplify right side
    20,845,837.89x = 332,377,118,202,702.06
  5. Step 5: Solve for x
    x = 332,377,118,202,702.06/20,845,837.89
  6. Step 6: Final answer
    x = 15,944,531.47

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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.