Home / 66,603,486.12-99,915,996.52-20,534,571.70

Finding the Fourth Proportional to 66,603,486.12, 99,915,996.52 and 20,534,571.70

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Solution

The fourth proportional to 66,603,486.12, 99,915,996.52 and 20,534,571.70 is: 30,805,177.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603,486.12 : 99,915,996.52 = 20,534,571.70 : x
  2. Step 2: Convert to fraction form
    66,603,486.12/99,915,996.52 = 20,534,571.70/x
  3. Step 3: Cross multiply
    66,603,486.12x = 99,915,996.52 × 20,534,571.70
  4. Step 4: Simplify right side
    66,603,486.12x = 2,051,732,194,516,890.25
  5. Step 5: Solve for x
    x = 2,051,732,194,516,890.25/66,603,486.12
  6. Step 6: Final answer
    x = 30,805,177.24

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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.