Home / 12,821,557.12-17,693,684.22-7,020,233.44

Finding the Fourth Proportional to 12,821,557.12, 17,693,684.22 and 7,020,233.44

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Solution

The fourth proportional to 12,821,557.12, 17,693,684.22 and 7,020,233.44 is: 9,687,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,557.12 : 17,693,684.22 = 7,020,233.44 : x
  2. Step 2: Convert to fraction form
    12,821,557.12/17,693,684.22 = 7,020,233.44/x
  3. Step 3: Cross multiply
    12,821,557.12x = 17,693,684.22 × 7,020,233.44
  4. Step 4: Simplify right side
    12,821,557.12x = 124,213,793,638,044.31
  5. Step 5: Solve for x
    x = 124,213,793,638,044.31/12,821,557.12
  6. Step 6: Final answer
    x = 9,687,886.77

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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.