Home / 258,863,629.70-386,877,032.08-188,981,020.80

Finding the Fourth Proportional to 258,863,629.70, 386,877,032.08 and 188,981,020.80

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Solution

The fourth proportional to 258,863,629.70, 386,877,032.08 and 188,981,020.80 is: 282,436,032.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,863,629.70 : 386,877,032.08 = 188,981,020.80 : x
  2. Step 2: Convert to fraction form
    258,863,629.70/386,877,032.08 = 188,981,020.80/x
  3. Step 3: Cross multiply
    258,863,629.70x = 386,877,032.08 × 188,981,020.80
  4. Step 4: Simplify right side
    258,863,629.70x = 73,112,416,446,552,752
  5. Step 5: Solve for x
    x = 73,112,416,446,552,752/258,863,629.70
  6. Step 6: Final answer
    x = 282,436,032.17

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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.