Home / 258,863,627.70-386,877,029.10-188,981,018.79

Finding the Fourth Proportional to 258,863,627.70, 386,877,029.10 and 188,981,018.79

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Solution

The fourth proportional to 258,863,627.70, 386,877,029.10 and 188,981,018.79 is: 282,436,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,863,627.70 : 386,877,029.10 = 188,981,018.79 : x
  2. Step 2: Convert to fraction form
    258,863,627.70/386,877,029.10 = 188,981,018.79/x
  3. Step 3: Cross multiply
    258,863,627.70x = 386,877,029.10 × 188,981,018.79
  4. Step 4: Simplify right side
    258,863,627.70x = 73,112,415,105,766,480
  5. Step 5: Solve for x
    x = 73,112,415,105,766,480/258,863,627.70
  6. Step 6: Final answer
    x = 282,436,029.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.