Home / 285,768,016.80-428,652,025.20-283,752,477.60

Finding the Fourth Proportional to 285,768,016.80, 428,652,025.20 and 283,752,477.60

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Solution

The fourth proportional to 285,768,016.80, 428,652,025.20 and 283,752,477.60 is: 425,628,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,768,016.80 : 428,652,025.20 = 283,752,477.60 : x
  2. Step 2: Convert to fraction form
    285,768,016.80/428,652,025.20 = 283,752,477.60/x
  3. Step 3: Cross multiply
    285,768,016.80x = 428,652,025.20 × 283,752,477.60
  4. Step 4: Simplify right side
    285,768,016.80x = 121,631,074,178,757,648
  5. Step 5: Solve for x
    x = 121,631,074,178,757,648/285,768,016.80
  6. Step 6: Final answer
    x = 425,628,716.40

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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.