Home / 12,259,161.90-16,917,643.35-7,105,512.78

Finding the Fourth Proportional to 12,259,161.90, 16,917,643.35 and 7,105,512.78

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Solution

The fourth proportional to 12,259,161.90, 16,917,643.35 and 7,105,512.78 is: 9,805,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259,161.90 : 16,917,643.35 = 7,105,512.78 : x
  2. Step 2: Convert to fraction form
    12,259,161.90/16,917,643.35 = 7,105,512.78/x
  3. Step 3: Cross multiply
    12,259,161.90x = 16,917,643.35 × 7,105,512.78
  4. Step 4: Simplify right side
    12,259,161.90x = 120,208,531,030,907.03
  5. Step 5: Solve for x
    x = 120,208,531,030,907.03/12,259,161.90
  6. Step 6: Final answer
    x = 9,805,607.59

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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.