Home / 13,613,913.06-18,786,653.37-7,418,827.73

Finding the Fourth Proportional to 13,613,913.06, 18,786,653.37 and 7,418,827.73

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Solution

The fourth proportional to 13,613,913.06, 18,786,653.37 and 7,418,827.73 is: 10,237,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613,913.06 : 18,786,653.37 = 7,418,827.73 : x
  2. Step 2: Convert to fraction form
    13,613,913.06/18,786,653.37 = 7,418,827.73/x
  3. Step 3: Cross multiply
    13,613,913.06x = 18,786,653.37 × 7,418,827.73
  4. Step 4: Simplify right side
    13,613,913.06x = 139,374,944,975,253.97
  5. Step 5: Solve for x
    x = 139,374,944,975,253.97/13,613,913.06
  6. Step 6: Final answer
    x = 10,237,684.38

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Double scale
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1.5x scale

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.