Home / 13,256,886.78-18,294,327.54-7,455,668.31

Finding the Fourth Proportional to 13,256,886.78, 18,294,327.54 and 7,455,668.31

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Solution

The fourth proportional to 13,256,886.78, 18,294,327.54 and 7,455,668.31 is: 10,288,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256,886.78 : 18,294,327.54 = 7,455,668.31 : x
  2. Step 2: Convert to fraction form
    13,256,886.78/18,294,327.54 = 7,455,668.31/x
  3. Step 3: Cross multiply
    13,256,886.78x = 18,294,327.54 × 7,455,668.31
  4. Step 4: Simplify right side
    13,256,886.78x = 136,396,438,092,738.25
  5. Step 5: Solve for x
    x = 136,396,438,092,738.25/13,256,886.78
  6. Step 6: Final answer
    x = 10,288,723.16

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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.