Home / 428,298,596.12-591,055,605.54-232,728,308.12

Finding the Fourth Proportional to 428,298,596.12, 591,055,605.54 and 232,728,308.12

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Solution

The fourth proportional to 428,298,596.12, 591,055,605.54 and 232,728,308.12 is: 321,166,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,298,596.12 : 591,055,605.54 = 232,728,308.12 : x
  2. Step 2: Convert to fraction form
    428,298,596.12/591,055,605.54 = 232,728,308.12/x
  3. Step 3: Cross multiply
    428,298,596.12x = 591,055,605.54 × 232,728,308.12
  4. Step 4: Simplify right side
    428,298,596.12x = 137,555,371,082,166,288
  5. Step 5: Solve for x
    x = 137,555,371,082,166,288/428,298,596.12
  6. Step 6: Final answer
    x = 321,166,990.34

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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.