Home / 66,278,175.15-99,432,323.69-20,224,163.91

Finding the Fourth Proportional to 66,278,175.15, 99,432,323.69 and 20,224,163.91

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Solution

The fourth proportional to 66,278,175.15, 99,432,323.69 and 20,224,163.91 is: 30,340,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,278,175.15 : 99,432,323.69 = 20,224,163.91 : x
  2. Step 2: Convert to fraction form
    66,278,175.15/99,432,323.69 = 20,224,163.91/x
  3. Step 3: Cross multiply
    66,278,175.15x = 99,432,323.69 × 20,224,163.91
  4. Step 4: Simplify right side
    66,278,175.15x = 2,010,935,612,157,615.25
  5. Step 5: Solve for x
    x = 2,010,935,612,157,615.25/66,278,175.15
  6. Step 6: Final answer
    x = 30,340,841.58

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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.