Home / 20,772,194.90-28,665,718.47-11,353,175.64

Finding the Fourth Proportional to 20,772,194.90, 28,665,718.47 and 11,353,175.64

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Solution

The fourth proportional to 20,772,194.90, 28,665,718.47 and 11,353,175.64 is: 15,667,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,194.90 : 28,665,718.47 = 11,353,175.64 : x
  2. Step 2: Convert to fraction form
    20,772,194.90/28,665,718.47 = 11,353,175.64/x
  3. Step 3: Cross multiply
    20,772,194.90x = 28,665,718.47 × 11,353,175.64
  4. Step 4: Simplify right side
    20,772,194.90x = 325,446,936,636,702.06
  5. Step 5: Solve for x
    x = 325,446,936,636,702.06/20,772,194.90
  6. Step 6: Final answer
    x = 15,667,431.31

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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.