Home / 66,559,814.20-99,850,449.60-20,501,661.84

Finding the Fourth Proportional to 66,559,814.20, 99,850,449.60 and 20,501,661.84

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Solution

The fourth proportional to 66,559,814.20, 99,850,449.60 and 20,501,661.84 is: 30,755,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559,814.20 : 99,850,449.60 = 20,501,661.84 : x
  2. Step 2: Convert to fraction form
    66,559,814.20/99,850,449.60 = 20,501,661.84/x
  3. Step 3: Cross multiply
    66,559,814.20x = 99,850,449.60 × 20,501,661.84
  4. Step 4: Simplify right side
    66,559,814.20x = 2,047,100,151,771,911
  5. Step 5: Solve for x
    x = 2,047,100,151,771,911/66,559,814.20
  6. Step 6: Final answer
    x = 30,755,797.27

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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.