Home / 7,191,057.80-9,923,594.18-3,927,872

Finding the Fourth Proportional to 7,191,057.80, 9,923,594.18 and 3,927,872

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Solution

The fourth proportional to 7,191,057.80, 9,923,594.18 and 3,927,872 is: 5,420,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,057.80 : 9,923,594.18 = 3,927,872 : x
  2. Step 2: Convert to fraction form
    7,191,057.80/9,923,594.18 = 3,927,872/x
  3. Step 3: Cross multiply
    7,191,057.80x = 9,923,594.18 × 3,927,872
  4. Step 4: Simplify right side
    7,191,057.80x = 38,978,607,718,984.96
  5. Step 5: Solve for x
    x = 38,978,607,718,984.96/7,191,057.80
  6. Step 6: Final answer
    x = 5,420,427.54

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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.