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Finding the Fourth Proportional to 65,664,485.60, 98,496,728.40 and 38,454,706.40

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Solution

The fourth proportional to 65,664,485.60, 98,496,728.40 and 38,454,706.40 is: 57,682,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,485.60 : 98,496,728.40 = 38,454,706.40 : x
  2. Step 2: Convert to fraction form
    65,664,485.60/98,496,728.40 = 38,454,706.40/x
  3. Step 3: Cross multiply
    65,664,485.60x = 98,496,728.40 × 38,454,706.40
  4. Step 4: Simplify right side
    65,664,485.60x = 3,787,662,771,982,542
  5. Step 5: Solve for x
    x = 3,787,662,771,982,542/65,664,485.60
  6. Step 6: Final answer
    x = 57,682,059.60

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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.