Home / 136,935,879,935.25-188,893,002,465.45-85,404,975,782.80

Finding the Fourth Proportional to 136,935,879,935.25, 188,893,002,465.45 and 85,404,975,782.80

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Solution

The fourth proportional to 136,935,879,935.25, 188,893,002,465.45 and 85,404,975,782.80 is: 117,809,899,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935,879,935.25 : 188,893,002,465.45 = 85,404,975,782.80 : x
  2. Step 2: Convert to fraction form
    136,935,879,935.25/188,893,002,465.45 = 85,404,975,782.80/x
  3. Step 3: Cross multiply
    136,935,879,935.25x = 188,893,002,465.45 × 85,404,975,782.80
  4. Step 4: Simplify right side
    136,935,879,935.25x = 16,132,402,301,101,385,187,328
  5. Step 5: Solve for x
    x = 16,132,402,301,101,385,187,328/136,935,879,935.25
  6. Step 6: Final answer
    x = 117,809,899,850.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.