Home / 81,651,003.80-122,476,505.70-36,212,798.30

Finding the Fourth Proportional to 81,651,003.80, 122,476,505.70 and 36,212,798.30

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Solution

The fourth proportional to 81,651,003.80, 122,476,505.70 and 36,212,798.30 is: 54,319,197.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651,003.80 : 122,476,505.70 = 36,212,798.30 : x
  2. Step 2: Convert to fraction form
    81,651,003.80/122,476,505.70 = 36,212,798.30/x
  3. Step 3: Cross multiply
    81,651,003.80x = 122,476,505.70 × 36,212,798.30
  4. Step 4: Simplify right side
    81,651,003.80x = 4,435,216,997,402,900
  5. Step 5: Solve for x
    x = 4,435,216,997,402,900/81,651,003.80
  6. Step 6: Final answer
    x = 54,319,197.45

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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.