Home / 13,613,912.61-18,786,652.75-7,418,827.28

Finding the Fourth Proportional to 13,613,912.61, 18,786,652.75 and 7,418,827.28

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Solution

The fourth proportional to 13,613,912.61, 18,786,652.75 and 7,418,827.28 is: 10,237,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613,912.61 : 18,786,652.75 = 7,418,827.28 : x
  2. Step 2: Convert to fraction form
    13,613,912.61/18,786,652.75 = 7,418,827.28/x
  3. Step 3: Cross multiply
    13,613,912.61x = 18,786,652.75 × 7,418,827.28
  4. Step 4: Simplify right side
    13,613,912.61x = 139,374,931,998,846.23
  5. Step 5: Solve for x
    x = 139,374,931,998,846.23/13,613,912.61
  6. Step 6: Final answer
    x = 10,237,683.76

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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.