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Finding the Fourth Proportional to 65,664,441.40, 98,496,662.10 and 38,454,662.20

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Solution

The fourth proportional to 65,664,441.40, 98,496,662.10 and 38,454,662.20 is: 57,681,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,441.40 : 98,496,662.10 = 38,454,662.20 : x
  2. Step 2: Convert to fraction form
    65,664,441.40/98,496,662.10 = 38,454,662.20/x
  3. Step 3: Cross multiply
    65,664,441.40x = 98,496,662.10 × 38,454,662.20
  4. Step 4: Simplify right side
    65,664,441.40x = 3,787,655,868,883,042.50
  5. Step 5: Solve for x
    x = 3,787,655,868,883,042.50/65,664,441.40
  6. Step 6: Final answer
    x = 57,681,993.30

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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.