Home / 403,629,125.40-605,443,688.10-199,555,781.40

Finding the Fourth Proportional to 403,629,125.40, 605,443,688.10 and 199,555,781.40

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Solution

The fourth proportional to 403,629,125.40, 605,443,688.10 and 199,555,781.40 is: 299,333,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,629,125.40 : 605,443,688.10 = 199,555,781.40 : x
  2. Step 2: Convert to fraction form
    403,629,125.40/605,443,688.10 = 199,555,781.40/x
  3. Step 3: Cross multiply
    403,629,125.40x = 605,443,688.10 × 199,555,781.40
  4. Step 4: Simplify right side
    403,629,125.40x = 120,819,788,272,493,392
  5. Step 5: Solve for x
    x = 120,819,788,272,493,392/403,629,125.40
  6. Step 6: Final answer
    x = 299,333,672.10

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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.