Home / 111,915,021.70-167,872,532.55-66,453,415.30

Finding the Fourth Proportional to 111,915,021.70, 167,872,532.55 and 66,453,415.30

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Solution

The fourth proportional to 111,915,021.70, 167,872,532.55 and 66,453,415.30 is: 99,680,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,915,021.70 : 167,872,532.55 = 66,453,415.30 : x
  2. Step 2: Convert to fraction form
    111,915,021.70/167,872,532.55 = 66,453,415.30/x
  3. Step 3: Cross multiply
    111,915,021.70x = 167,872,532.55 × 66,453,415.30
  4. Step 4: Simplify right side
    111,915,021.70x = 11,155,703,123,007,918
  5. Step 5: Solve for x
    x = 11,155,703,123,007,918/111,915,021.70
  6. Step 6: Final answer
    x = 99,680,122.95

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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.