Home / 8,420,928.40-11,620,872.93-4,553,440.30

Finding the Fourth Proportional to 8,420,928.40, 11,620,872.93 and 4,553,440.30

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Solution

The fourth proportional to 8,420,928.40, 11,620,872.93 and 4,553,440.30 is: 6,283,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,928.40 : 11,620,872.93 = 4,553,440.30 : x
  2. Step 2: Convert to fraction form
    8,420,928.40/11,620,872.93 = 4,553,440.30/x
  3. Step 3: Cross multiply
    8,420,928.40x = 11,620,872.93 × 4,553,440.30
  4. Step 4: Simplify right side
    8,420,928.40x = 52,914,951,120,641.08
  5. Step 5: Solve for x
    x = 52,914,951,120,641.08/8,420,928.40
  6. Step 6: Final answer
    x = 6,283,743.15

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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.