Home / 208,763,981,328.27-313,017,815,990.33-81,129,644,112.04

Finding the Fourth Proportional to 208,763,981,328.27, 313,017,815,990.33 and 81,129,644,112.04

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Solution

The fourth proportional to 208,763,981,328.27, 313,017,815,990.33 and 81,129,644,112.04 is: 121,644,662,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,763,981,328.27 : 313,017,815,990.33 = 81,129,644,112.04 : x
  2. Step 2: Convert to fraction form
    208,763,981,328.27/313,017,815,990.33 = 81,129,644,112.04/x
  3. Step 3: Cross multiply
    208,763,981,328.27x = 313,017,815,990.33 × 81,129,644,112.04
  4. Step 4: Simplify right side
    208,763,981,328.27x = 25,395,024,012,023,496,179,712
  5. Step 5: Solve for x
    x = 25,395,024,012,023,496,179,712/208,763,981,328.27
  6. Step 6: Final answer
    x = 121,644,662,314.10

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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.