Home / 221,272,461.20-331,909,479-67,918,530.80

Finding the Fourth Proportional to 221,272,461.20, 331,909,479 and 67,918,530.80

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Solution

The fourth proportional to 221,272,461.20, 331,909,479 and 67,918,530.80 is: 101,878,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,272,461.20 : 331,909,479 = 67,918,530.80 : x
  2. Step 2: Convert to fraction form
    221,272,461.20/331,909,479 = 67,918,530.80/x
  3. Step 3: Cross multiply
    221,272,461.20x = 331,909,479 × 67,918,530.80
  4. Step 4: Simplify right side
    221,272,461.20x = 22,542,804,172,273,452
  5. Step 5: Solve for x
    x = 22,542,804,172,273,452/221,272,461.20
  6. Step 6: Final answer
    x = 101,878,037.83

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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.