Home / 208,763,981,327.27-313,017,815,988.83-81,129,644,111.04

Finding the Fourth Proportional to 208,763,981,327.27, 313,017,815,988.83 and 81,129,644,111.04

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Solution

The fourth proportional to 208,763,981,327.27, 313,017,815,988.83 and 81,129,644,111.04 is: 121,644,662,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,763,981,327.27 : 313,017,815,988.83 = 81,129,644,111.04 : x
  2. Step 2: Convert to fraction form
    208,763,981,327.27/313,017,815,988.83 = 81,129,644,111.04/x
  3. Step 3: Cross multiply
    208,763,981,327.27x = 313,017,815,988.83 × 81,129,644,111.04
  4. Step 4: Simplify right side
    208,763,981,327.27x = 25,395,024,011,588,781,735,936
  5. Step 5: Solve for x
    x = 25,395,024,011,588,781,735,936/208,763,981,327.27
  6. Step 6: Final answer
    x = 121,644,662,312.60

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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.