Home / 399,403,997.40-599,105,996.10-384,098,496.60

Finding the Fourth Proportional to 399,403,997.40, 599,105,996.10 and 384,098,496.60

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Solution

The fourth proportional to 399,403,997.40, 599,105,996.10 and 384,098,496.60 is: 576,147,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,403,997.40 : 599,105,996.10 = 384,098,496.60 : x
  2. Step 2: Convert to fraction form
    399,403,997.40/599,105,996.10 = 384,098,496.60/x
  3. Step 3: Cross multiply
    399,403,997.40x = 599,105,996.10 × 384,098,496.60
  4. Step 4: Simplify right side
    399,403,997.40x = 230,115,712,406,055,488
  5. Step 5: Solve for x
    x = 230,115,712,406,055,488/399,403,997.40
  6. Step 6: Final answer
    x = 576,147,744.90

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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.