Home / 66,878,800-100,234,271.04-36,172,153.60

Finding the Fourth Proportional to 66,878,800, 100,234,271.04 and 36,172,153.60

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Solution

The fourth proportional to 66,878,800, 100,234,271.04 and 36,172,153.60 is: 54,212,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878,800 : 100,234,271.04 = 36,172,153.60 : x
  2. Step 2: Convert to fraction form
    66,878,800/100,234,271.04 = 36,172,153.60/x
  3. Step 3: Cross multiply
    66,878,800x = 100,234,271.04 × 36,172,153.60
  4. Step 4: Simplify right side
    66,878,800x = 3,625,689,448,042,912
  5. Step 5: Solve for x
    x = 3,625,689,448,042,912/66,878,800
  6. Step 6: Final answer
    x = 54,212,836.47

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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.