Home / 28,677,255.40-43,015,883.10-12,752,007.40

Finding the Fourth Proportional to 28,677,255.40, 43,015,883.10 and 12,752,007.40

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Solution

The fourth proportional to 28,677,255.40, 43,015,883.10 and 12,752,007.40 is: 19,128,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677,255.40 : 43,015,883.10 = 12,752,007.40 : x
  2. Step 2: Convert to fraction form
    28,677,255.40/43,015,883.10 = 12,752,007.40/x
  3. Step 3: Cross multiply
    28,677,255.40x = 43,015,883.10 × 12,752,007.40
  4. Step 4: Simplify right side
    28,677,255.40x = 548,538,859,608,735
  5. Step 5: Solve for x
    x = 548,538,859,608,735/28,677,255.40
  6. Step 6: Final answer
    x = 19,128,011.10

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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.