Home / 12,856,128.23-17,741,968.47-7,055,117.57

Finding the Fourth Proportional to 12,856,128.23, 17,741,968.47 and 7,055,117.57

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Solution

The fourth proportional to 12,856,128.23, 17,741,968.47 and 7,055,117.57 is: 9,736,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856,128.23 : 17,741,968.47 = 7,055,117.57 : x
  2. Step 2: Convert to fraction form
    12,856,128.23/17,741,968.47 = 7,055,117.57/x
  3. Step 3: Cross multiply
    12,856,128.23x = 17,741,968.47 × 7,055,117.57
  4. Step 4: Simplify right side
    12,856,128.23x = 125,171,673,443,478.36
  5. Step 5: Solve for x
    x = 125,171,673,443,478.36/12,856,128.23
  6. Step 6: Final answer
    x = 9,736,342.95

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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.