Home / 13,930,863.68-19,223,537.76-7,818,111.20

Finding the Fourth Proportional to 13,930,863.68, 19,223,537.76 and 7,818,111.20

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Solution

The fourth proportional to 13,930,863.68, 19,223,537.76 and 7,818,111.20 is: 10,788,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930,863.68 : 19,223,537.76 = 7,818,111.20 : x
  2. Step 2: Convert to fraction form
    13,930,863.68/19,223,537.76 = 7,818,111.20/x
  3. Step 3: Cross multiply
    13,930,863.68x = 19,223,537.76 × 7,818,111.20
  4. Step 4: Simplify right side
    13,930,863.68x = 150,291,755,865,078.94
  5. Step 5: Solve for x
    x = 150,291,755,865,078.94/13,930,863.68
  6. Step 6: Final answer
    x = 10,788,401.88

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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.