Home / 5,231,647.31-7,220,349.85-2,939,808.20

Finding the Fourth Proportional to 5,231,647.31, 7,220,349.85 and 2,939,808.20

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Solution

The fourth proportional to 5,231,647.31, 7,220,349.85 and 2,939,808.20 is: 4,057,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231,647.31 : 7,220,349.85 = 2,939,808.20 : x
  2. Step 2: Convert to fraction form
    5,231,647.31/7,220,349.85 = 2,939,808.20/x
  3. Step 3: Cross multiply
    5,231,647.31x = 7,220,349.85 × 2,939,808.20
  4. Step 4: Simplify right side
    5,231,647.31x = 21,226,443,706,600.12
  5. Step 5: Solve for x
    x = 21,226,443,706,600.12/5,231,647.31
  6. Step 6: Final answer
    x = 4,057,315.50

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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.