Home / 420,060,147.33-579,667,807.65-231,884,399.51

Finding the Fourth Proportional to 420,060,147.33, 579,667,807.65 and 231,884,399.51

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Solution

The fourth proportional to 420,060,147.33, 579,667,807.65 and 231,884,399.51 is: 319,992,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,060,147.33 : 579,667,807.65 = 231,884,399.51 : x
  2. Step 2: Convert to fraction form
    420,060,147.33/579,667,807.65 = 231,884,399.51/x
  3. Step 3: Cross multiply
    420,060,147.33x = 579,667,807.65 × 231,884,399.51
  4. Step 4: Simplify right side
    420,060,147.33x = 134,415,921,489,300,080
  5. Step 5: Solve for x
    x = 134,415,921,489,300,080/420,060,147.33
  6. Step 6: Final answer
    x = 319,992,082.90

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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.