Home / 81,875,881.80-122,778,393.30-33,337,603.80

Finding the Fourth Proportional to 81,875,881.80, 122,778,393.30 and 33,337,603.80

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Solution

The fourth proportional to 81,875,881.80, 122,778,393.30 and 33,337,603.80 is: 49,991,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,875,881.80 : 122,778,393.30 = 33,337,603.80 : x
  2. Step 2: Convert to fraction form
    81,875,881.80/122,778,393.30 = 33,337,603.80/x
  3. Step 3: Cross multiply
    81,875,881.80x = 122,778,393.30 × 33,337,603.80
  4. Step 4: Simplify right side
    81,875,881.80x = 4,093,137,431,035,974.50
  5. Step 5: Solve for x
    x = 4,093,137,431,035,974.50/81,875,881.80
  6. Step 6: Final answer
    x = 49,991,979.82

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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.