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Finding the Fourth Proportional to 30,676,863.60, 46,015,295.40 and 28,787,295.60

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Solution

The fourth proportional to 30,676,863.60, 46,015,295.40 and 28,787,295.60 is: 43,180,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676,863.60 : 46,015,295.40 = 28,787,295.60 : x
  2. Step 2: Convert to fraction form
    30,676,863.60/46,015,295.40 = 28,787,295.60/x
  3. Step 3: Cross multiply
    30,676,863.60x = 46,015,295.40 × 28,787,295.60
  4. Step 4: Simplify right side
    30,676,863.60x = 1,324,655,910,801,120.25
  5. Step 5: Solve for x
    x = 1,324,655,910,801,120.25/30,676,863.60
  6. Step 6: Final answer
    x = 43,180,943.40

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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.