Home / 12,687,653.13-17,508,741.60-6,886,310.28

Finding the Fourth Proportional to 12,687,653.13, 17,508,741.60 and 6,886,310.28

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Solution

The fourth proportional to 12,687,653.13, 17,508,741.60 and 6,886,310.28 is: 9,502,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,653.13 : 17,508,741.60 = 6,886,310.28 : x
  2. Step 2: Convert to fraction form
    12,687,653.13/17,508,741.60 = 6,886,310.28/x
  3. Step 3: Cross multiply
    12,687,653.13x = 17,508,741.60 × 6,886,310.28
  4. Step 4: Simplify right side
    12,687,653.13x = 120,570,627,269,943.66
  5. Step 5: Solve for x
    x = 120,570,627,269,943.66/12,687,653.13
  6. Step 6: Final answer
    x = 9,502,988.93

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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.