Home / 420,060,145.82-579,667,805.58-231,884,398.01

Finding the Fourth Proportional to 420,060,145.82, 579,667,805.58 and 231,884,398.01

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Solution

The fourth proportional to 420,060,145.82, 579,667,805.58 and 231,884,398.01 is: 319,992,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,060,145.82 : 579,667,805.58 = 231,884,398.01 : x
  2. Step 2: Convert to fraction form
    420,060,145.82/579,667,805.58 = 231,884,398.01/x
  3. Step 3: Cross multiply
    420,060,145.82x = 579,667,805.58 × 231,884,398.01
  4. Step 4: Simplify right side
    420,060,145.82x = 134,415,920,142,696,016
  5. Step 5: Solve for x
    x = 134,415,920,142,696,016/420,060,145.82
  6. Step 6: Final answer
    x = 319,992,080.85

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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.