Home / 257,904,022.65-386,856,033.98-206,885,686.65

Finding the Fourth Proportional to 257,904,022.65, 386,856,033.98 and 206,885,686.65

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Solution

The fourth proportional to 257,904,022.65, 386,856,033.98 and 206,885,686.65 is: 310,328,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,904,022.65 : 386,856,033.98 = 206,885,686.65 : x
  2. Step 2: Convert to fraction form
    257,904,022.65/386,856,033.98 = 206,885,686.65/x
  3. Step 3: Cross multiply
    257,904,022.65x = 386,856,033.98 × 206,885,686.65
  4. Step 4: Simplify right side
    257,904,022.65x = 80,034,976,223,613,616
  5. Step 5: Solve for x
    x = 80,034,976,223,613,616/257,904,022.65
  6. Step 6: Final answer
    x = 310,328,529.98

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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.