Home / 66,429,709.20-99,644,563.80-52,992,781.20

Finding the Fourth Proportional to 66,429,709.20, 99,644,563.80 and 52,992,781.20

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Solution

The fourth proportional to 66,429,709.20, 99,644,563.80 and 52,992,781.20 is: 79,489,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,709.20 : 99,644,563.80 = 52,992,781.20 : x
  2. Step 2: Convert to fraction form
    66,429,709.20/99,644,563.80 = 52,992,781.20/x
  3. Step 3: Cross multiply
    66,429,709.20x = 99,644,563.80 × 52,992,781.20
  4. Step 4: Simplify right side
    66,429,709.20x = 5,280,442,567,222,841
  5. Step 5: Solve for x
    x = 5,280,442,567,222,841/66,429,709.20
  6. Step 6: Final answer
    x = 79,489,171.80

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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.