Home / 403,488,029.20-605,232,043.80-199,414,685.20

Finding the Fourth Proportional to 403,488,029.20, 605,232,043.80 and 199,414,685.20

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Solution

The fourth proportional to 403,488,029.20, 605,232,043.80 and 199,414,685.20 is: 299,122,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,488,029.20 : 605,232,043.80 = 199,414,685.20 : x
  2. Step 2: Convert to fraction form
    403,488,029.20/605,232,043.80 = 199,414,685.20/x
  3. Step 3: Cross multiply
    403,488,029.20x = 605,232,043.80 × 199,414,685.20
  4. Step 4: Simplify right side
    403,488,029.20x = 120,692,157,487,329,600
  5. Step 5: Solve for x
    x = 120,692,157,487,329,600/403,488,029.20
  6. Step 6: Final answer
    x = 299,122,027.80

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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.