Home / 5,218,686.21-7,202,181.42-2,896,018.41

Finding the Fourth Proportional to 5,218,686.21, 7,202,181.42 and 2,896,018.41

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Solution

The fourth proportional to 5,218,686.21, 7,202,181.42 and 2,896,018.41 is: 3,996,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218,686.21 : 7,202,181.42 = 2,896,018.41 : x
  2. Step 2: Convert to fraction form
    5,218,686.21/7,202,181.42 = 2,896,018.41/x
  3. Step 3: Cross multiply
    5,218,686.21x = 7,202,181.42 × 2,896,018.41
  4. Step 4: Simplify right side
    5,218,686.21x = 20,857,649,984,479.94
  5. Step 5: Solve for x
    x = 20,857,649,984,479.94/5,218,686.21
  6. Step 6: Final answer
    x = 3,996,724.30

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1.5x scale

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.