Home / 20,703,568.31-28,570,796.40-11,284,348.63

Finding the Fourth Proportional to 20,703,568.31, 28,570,796.40 and 11,284,348.63

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Solution

The fourth proportional to 20,703,568.31, 28,570,796.40 and 11,284,348.63 is: 15,572,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703,568.31 : 28,570,796.40 = 11,284,348.63 : x
  2. Step 2: Convert to fraction form
    20,703,568.31/28,570,796.40 = 11,284,348.63/x
  3. Step 3: Cross multiply
    20,703,568.31x = 28,570,796.40 × 11,284,348.63
  4. Step 4: Simplify right side
    20,703,568.31x = 322,402,827,175,334
  5. Step 5: Solve for x
    x = 322,402,827,175,334/20,703,568.31
  6. Step 6: Final answer
    x = 15,572,331.41

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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.