Home / 66,559,811.94-99,850,446.22-20,501,659.58

Finding the Fourth Proportional to 66,559,811.94, 99,850,446.22 and 20,501,659.58

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Solution

The fourth proportional to 66,559,811.94, 99,850,446.22 and 20,501,659.58 is: 30,755,793.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559,811.94 : 99,850,446.22 = 20,501,659.58 : x
  2. Step 2: Convert to fraction form
    66,559,811.94/99,850,446.22 = 20,501,659.58/x
  3. Step 3: Cross multiply
    66,559,811.94x = 99,850,446.22 × 20,501,659.58
  4. Step 4: Simplify right side
    66,559,811.94x = 2,047,099,857,313,537.50
  5. Step 5: Solve for x
    x = 2,047,099,857,313,537.50/66,559,811.94
  6. Step 6: Final answer
    x = 30,755,793.89

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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.