Home / 13,579,836.27-18,740,401.16-7,779,123.87

Finding the Fourth Proportional to 13,579,836.27, 18,740,401.16 and 7,779,123.87

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Solution

The fourth proportional to 13,579,836.27, 18,740,401.16 and 7,779,123.87 is: 10,735,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,836.27 : 18,740,401.16 = 7,779,123.87 : x
  2. Step 2: Convert to fraction form
    13,579,836.27/18,740,401.16 = 7,779,123.87/x
  3. Step 3: Cross multiply
    13,579,836.27x = 18,740,401.16 × 7,779,123.87
  4. Step 4: Simplify right side
    13,579,836.27x = 145,783,901,958,236.09
  5. Step 5: Solve for x
    x = 145,783,901,958,236.09/13,579,836.27
  6. Step 6: Final answer
    x = 10,735,321.03

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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.