Home / 288,486,538.82-432,733,132.44-104,268,005.54

Finding the Fourth Proportional to 288,486,538.82, 432,733,132.44 and 104,268,005.54

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Solution

The fourth proportional to 288,486,538.82, 432,733,132.44 and 104,268,005.54 is: 156,403,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,486,538.82 : 432,733,132.44 = 104,268,005.54 : x
  2. Step 2: Convert to fraction form
    288,486,538.82/432,733,132.44 = 104,268,005.54/x
  3. Step 3: Cross multiply
    288,486,538.82x = 432,733,132.44 × 104,268,005.54
  4. Step 4: Simplify right side
    288,486,538.82x = 45,120,220,648,431,808
  5. Step 5: Solve for x
    x = 45,120,220,648,431,808/288,486,538.82
  6. Step 6: Final answer
    x = 156,403,209.78

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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.