Home / 122,209,915.88-168,644,550.04-69,290,183.56

Finding the Fourth Proportional to 122,209,915.88, 168,644,550.04 and 69,290,183.56

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Solution

The fourth proportional to 122,209,915.88, 168,644,550.04 and 69,290,183.56 is: 95,617,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,209,915.88 : 168,644,550.04 = 69,290,183.56 : x
  2. Step 2: Convert to fraction form
    122,209,915.88/168,644,550.04 = 69,290,183.56/x
  3. Step 3: Cross multiply
    122,209,915.88x = 168,644,550.04 × 69,290,183.56
  4. Step 4: Simplify right side
    122,209,915.88x = 11,685,411,828,665,206
  5. Step 5: Solve for x
    x = 11,685,411,828,665,206/122,209,915.88
  6. Step 6: Final answer
    x = 95,617,542.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.