Home / 463,781,689.92-640,326,922.56-356,299,582.32

Finding the Fourth Proportional to 463,781,689.92, 640,326,922.56 and 356,299,582.32

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Solution

The fourth proportional to 463,781,689.92, 640,326,922.56 and 356,299,582.32 is: 491,930,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,781,689.92 : 640,326,922.56 = 356,299,582.32 : x
  2. Step 2: Convert to fraction form
    463,781,689.92/640,326,922.56 = 356,299,582.32/x
  3. Step 3: Cross multiply
    463,781,689.92x = 640,326,922.56 × 356,299,582.32
  4. Step 4: Simplify right side
    463,781,689.92x = 228,148,215,056,378,976
  5. Step 5: Solve for x
    x = 228,148,215,056,378,976/463,781,689.92
  6. Step 6: Final answer
    x = 491,930,190.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.