Home / 207,455,415.30-310,970,546.55-121,149,396.90

Finding the Fourth Proportional to 207,455,415.30, 310,970,546.55 and 121,149,396.90

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Solution

The fourth proportional to 207,455,415.30, 310,970,546.55 and 121,149,396.90 is: 181,599,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,455,415.30 : 310,970,546.55 = 121,149,396.90 : x
  2. Step 2: Convert to fraction form
    207,455,415.30/310,970,546.55 = 121,149,396.90/x
  3. Step 3: Cross multiply
    207,455,415.30x = 310,970,546.55 × 121,149,396.90
  4. Step 4: Simplify right side
    207,455,415.30x = 37,673,894,168,195,880
  5. Step 5: Solve for x
    x = 37,673,894,168,195,880/207,455,415.30
  6. Step 6: Final answer
    x = 181,599,955.41

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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.