Home / 327,748,841.60-491,623,262.40-85,411,745.60

Finding the Fourth Proportional to 327,748,841.60, 491,623,262.40 and 85,411,745.60

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Solution

The fourth proportional to 327,748,841.60, 491,623,262.40 and 85,411,745.60 is: 128,117,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,748,841.60 : 491,623,262.40 = 85,411,745.60 : x
  2. Step 2: Convert to fraction form
    327,748,841.60/491,623,262.40 = 85,411,745.60/x
  3. Step 3: Cross multiply
    327,748,841.60x = 491,623,262.40 × 85,411,745.60
  4. Step 4: Simplify right side
    327,748,841.60x = 41,990,401,019,150,840
  5. Step 5: Solve for x
    x = 41,990,401,019,150,840/327,748,841.60
  6. Step 6: Final answer
    x = 128,117,618.40

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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.