Home / 66,641,145.39-99,972,367.67-20,572,185.86

Finding the Fourth Proportional to 66,641,145.39, 99,972,367.67 and 20,572,185.86

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Solution

The fourth proportional to 66,641,145.39, 99,972,367.67 and 20,572,185.86 is: 30,861,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641,145.39 : 99,972,367.67 = 20,572,185.86 : x
  2. Step 2: Convert to fraction form
    66,641,145.39/99,972,367.67 = 20,572,185.86/x
  3. Step 3: Cross multiply
    66,641,145.39x = 99,972,367.67 × 20,572,185.86
  4. Step 4: Simplify right side
    66,641,145.39x = 2,056,650,128,280,873
  5. Step 5: Solve for x
    x = 2,056,650,128,280,873/66,641,145.39
  6. Step 6: Final answer
    x = 30,861,566.32

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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.