Home / 258,375,092.80-387,637,288.80-76,626,644.80

Finding the Fourth Proportional to 258,375,092.80, 387,637,288.80 and 76,626,644.80

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Solution

The fourth proportional to 258,375,092.80, 387,637,288.80 and 76,626,644.80 is: 114,962,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,375,092.80 : 387,637,288.80 = 76,626,644.80 : x
  2. Step 2: Convert to fraction form
    258,375,092.80/387,637,288.80 = 76,626,644.80/x
  3. Step 3: Cross multiply
    258,375,092.80x = 387,637,288.80 × 76,626,644.80
  4. Step 4: Simplify right side
    258,375,092.80x = 29,703,344,840,112,616
  5. Step 5: Solve for x
    x = 29,703,344,840,112,616/258,375,092.80
  6. Step 6: Final answer
    x = 114,962,106.13

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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.