Home / 486,178,868.80-729,384,319.50-158,654,990.80

Finding the Fourth Proportional to 486,178,868.80, 729,384,319.50 and 158,654,990.80

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Solution

The fourth proportional to 486,178,868.80, 729,384,319.50 and 158,654,990.80 is: 238,020,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,178,868.80 : 729,384,319.50 = 158,654,990.80 : x
  2. Step 2: Convert to fraction form
    486,178,868.80/729,384,319.50 = 158,654,990.80/x
  3. Step 3: Cross multiply
    486,178,868.80x = 729,384,319.50 × 158,654,990.80
  4. Step 4: Simplify right side
    486,178,868.80x = 115,720,462,499,936,768
  5. Step 5: Solve for x
    x = 115,720,462,499,936,768/486,178,868.80
  6. Step 6: Final answer
    x = 238,020,345.86

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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.