Home / 66,559,812.08-99,850,446.39-20,501,659.69

Finding the Fourth Proportional to 66,559,812.08, 99,850,446.39 and 20,501,659.69

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Solution

The fourth proportional to 66,559,812.08, 99,850,446.39 and 20,501,659.69 is: 30,755,794.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559,812.08 : 99,850,446.39 = 20,501,659.69 : x
  2. Step 2: Convert to fraction form
    66,559,812.08/99,850,446.39 = 20,501,659.69/x
  3. Step 3: Cross multiply
    66,559,812.08x = 99,850,446.39 × 20,501,659.69
  4. Step 4: Simplify right side
    66,559,812.08x = 2,047,099,871,782,369.25
  5. Step 5: Solve for x
    x = 2,047,099,871,782,369.25/66,559,812.08
  6. Step 6: Final answer
    x = 30,755,794.04

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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.