Home / 66,145,485.60-99,218,228.40-47,863,915.20

Finding the Fourth Proportional to 66,145,485.60, 99,218,228.40 and 47,863,915.20

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Solution

The fourth proportional to 66,145,485.60, 99,218,228.40 and 47,863,915.20 is: 71,795,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,145,485.60 : 99,218,228.40 = 47,863,915.20 : x
  2. Step 2: Convert to fraction form
    66,145,485.60/99,218,228.40 = 47,863,915.20/x
  3. Step 3: Cross multiply
    66,145,485.60x = 99,218,228.40 × 47,863,915.20
  4. Step 4: Simplify right side
    66,145,485.60x = 4,748,972,870,431,832
  5. Step 5: Solve for x
    x = 4,748,972,870,431,832/66,145,485.60
  6. Step 6: Final answer
    x = 71,795,872.80

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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.