Home / 421,190,727.12-581,218,950.60-233,007,932.88

Finding the Fourth Proportional to 421,190,727.12, 581,218,950.60 and 233,007,932.88

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Solution

The fourth proportional to 421,190,727.12, 581,218,950.60 and 233,007,932.88 is: 321,537,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,190,727.12 : 581,218,950.60 = 233,007,932.88 : x
  2. Step 2: Convert to fraction form
    421,190,727.12/581,218,950.60 = 233,007,932.88/x
  3. Step 3: Cross multiply
    421,190,727.12x = 581,218,950.60 × 233,007,932.88
  4. Step 4: Simplify right side
    421,190,727.12x = 135,428,626,229,988,832
  5. Step 5: Solve for x
    x = 135,428,626,229,988,832/421,190,727.12
  6. Step 6: Final answer
    x = 321,537,530.41

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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.