Home / 137,974,796.61-190,416,665.39-79,248,794.64

Finding the Fourth Proportional to 137,974,796.61, 190,416,665.39 and 79,248,794.64

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Solution

The fourth proportional to 137,974,796.61, 190,416,665.39 and 79,248,794.64 is: 109,369,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,974,796.61 : 190,416,665.39 = 79,248,794.64 : x
  2. Step 2: Convert to fraction form
    137,974,796.61/190,416,665.39 = 79,248,794.64/x
  3. Step 3: Cross multiply
    137,974,796.61x = 190,416,665.39 × 79,248,794.64
  4. Step 4: Simplify right side
    137,974,796.61x = 15,090,291,211,525,704
  5. Step 5: Solve for x
    x = 15,090,291,211,525,704/137,974,796.61
  6. Step 6: Final answer
    x = 109,369,910.90

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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.