Home / 13,481,985.81-20,220,018.98-3,895,278.60

Finding the Fourth Proportional to 13,481,985.81, 20,220,018.98 and 3,895,278.60

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Solution

The fourth proportional to 13,481,985.81, 20,220,018.98 and 3,895,278.60 is: 5,842,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481,985.81 : 20,220,018.98 = 3,895,278.60 : x
  2. Step 2: Convert to fraction form
    13,481,985.81/20,220,018.98 = 3,895,278.60/x
  3. Step 3: Cross multiply
    13,481,985.81x = 20,220,018.98 × 3,895,278.60
  4. Step 4: Simplify right side
    13,481,985.81x = 78,762,607,204,911.44
  5. Step 5: Solve for x
    x = 78,762,607,204,911.44/13,481,985.81
  6. Step 6: Final answer
    x = 5,842,062.76

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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.