Home / 66,883,620.80-100,325,431.20-56,679,953.60

Finding the Fourth Proportional to 66,883,620.80, 100,325,431.20 and 56,679,953.60

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Solution

The fourth proportional to 66,883,620.80, 100,325,431.20 and 56,679,953.60 is: 85,019,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,883,620.80 : 100,325,431.20 = 56,679,953.60 : x
  2. Step 2: Convert to fraction form
    66,883,620.80/100,325,431.20 = 56,679,953.60/x
  3. Step 3: Cross multiply
    66,883,620.80x = 100,325,431.20 × 56,679,953.60
  4. Step 4: Simplify right side
    66,883,620.80x = 5,686,440,785,315,993
  5. Step 5: Solve for x
    x = 5,686,440,785,315,993/66,883,620.80
  6. Step 6: Final answer
    x = 85,019,930.40

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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.