Home / 486,178,565.29-729,383,865.35-158,654,687.77

Finding the Fourth Proportional to 486,178,565.29, 729,383,865.35 and 158,654,687.77

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Solution

The fourth proportional to 486,178,565.29, 729,383,865.35 and 158,654,687.77 is: 238,019,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,178,565.29 : 729,383,865.35 = 158,654,687.77 : x
  2. Step 2: Convert to fraction form
    486,178,565.29/729,383,865.35 = 158,654,687.77/x
  3. Step 3: Cross multiply
    486,178,565.29x = 729,383,865.35 × 158,654,687.77
  4. Step 4: Simplify right side
    486,178,565.29x = 115,720,169,421,579,984
  5. Step 5: Solve for x
    x = 115,720,169,421,579,984/486,178,565.29
  6. Step 6: Final answer
    x = 238,019,891.63

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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.