Home / 13,620,676.47-20,411,895.22-7,456,811.97

Finding the Fourth Proportional to 13,620,676.47, 20,411,895.22 and 7,456,811.97

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Solution

The fourth proportional to 13,620,676.47, 20,411,895.22 and 7,456,811.97 is: 11,174,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,676.47 : 20,411,895.22 = 7,456,811.97 : x
  2. Step 2: Convert to fraction form
    13,620,676.47/20,411,895.22 = 7,456,811.97/x
  3. Step 3: Cross multiply
    13,620,676.47x = 20,411,895.22 × 7,456,811.97
  4. Step 4: Simplify right side
    13,620,676.47x = 152,207,664,706,728.94
  5. Step 5: Solve for x
    x = 152,207,664,706,728.94/13,620,676.47
  6. Step 6: Final answer
    x = 11,174,750.76

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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.