Home / 13,613,378.09-20,407,707.55-6,792,037.61

Finding the Fourth Proportional to 13,613,378.09, 20,407,707.55 and 6,792,037.61

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Solution

The fourth proportional to 13,613,378.09, 20,407,707.55 and 6,792,037.61 is: 10,181,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613,378.09 : 20,407,707.55 = 6,792,037.61 : x
  2. Step 2: Convert to fraction form
    13,613,378.09/20,407,707.55 = 6,792,037.61/x
  3. Step 3: Cross multiply
    13,613,378.09x = 20,407,707.55 × 6,792,037.61
  4. Step 4: Simplify right side
    13,613,378.09x = 138,609,917,179,520.78
  5. Step 5: Solve for x
    x = 138,609,917,179,520.78/13,613,378.09
  6. Step 6: Final answer
    x = 10,181,889.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.