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Finding the Fourth Proportional to 343,868,400.40, 515,802,600.60 and 323,696,419.60

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Solution

The fourth proportional to 343,868,400.40, 515,802,600.60 and 323,696,419.60 is: 485,544,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,868,400.40 : 515,802,600.60 = 323,696,419.60 : x
  2. Step 2: Convert to fraction form
    343,868,400.40/515,802,600.60 = 323,696,419.60/x
  3. Step 3: Cross multiply
    343,868,400.40x = 515,802,600.60 × 323,696,419.60
  4. Step 4: Simplify right side
    343,868,400.40x = 166,963,455,034,588,832
  5. Step 5: Solve for x
    x = 166,963,455,034,588,832/343,868,400.40
  6. Step 6: Final answer
    x = 485,544,629.40

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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.