Home / 81,344,308.05-122,136,036.30-57,190,314.60

Finding the Fourth Proportional to 81,344,308.05, 122,136,036.30 and 57,190,314.60

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Solution

The fourth proportional to 81,344,308.05, 122,136,036.30 and 57,190,314.60 is: 85,869,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,344,308.05 : 122,136,036.30 = 57,190,314.60 : x
  2. Step 2: Convert to fraction form
    81,344,308.05/122,136,036.30 = 57,190,314.60/x
  3. Step 3: Cross multiply
    81,344,308.05x = 122,136,036.30 × 57,190,314.60
  4. Step 4: Simplify right side
    81,344,308.05x = 6,984,998,339,994,020
  5. Step 5: Solve for x
    x = 6,984,998,339,994,020/81,344,308.05
  6. Step 6: Final answer
    x = 85,869,540.32

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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.