Home / 320,467,626.47-480,634,178.31-90,382,902.72

Finding the Fourth Proportional to 320,467,626.47, 480,634,178.31 and 90,382,902.72

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Solution

The fourth proportional to 320,467,626.47, 480,634,178.31 and 90,382,902.72 is: 135,555,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,467,626.47 : 480,634,178.31 = 90,382,902.72 : x
  2. Step 2: Convert to fraction form
    320,467,626.47/480,634,178.31 = 90,382,902.72/x
  3. Step 3: Cross multiply
    320,467,626.47x = 480,634,178.31 × 90,382,902.72
  4. Step 4: Simplify right side
    320,467,626.47x = 43,441,112,182,099,864
  5. Step 5: Solve for x
    x = 43,441,112,182,099,864/320,467,626.47
  6. Step 6: Final answer
    x = 135,555,384.05

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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.