Home / 8,787,661.46-12,128,245.72-4,920,431.66

Finding the Fourth Proportional to 8,787,661.46, 12,128,245.72 and 4,920,431.66

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Solution

The fourth proportional to 8,787,661.46, 12,128,245.72 and 4,920,431.66 is: 6,790,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787,661.46 : 12,128,245.72 = 4,920,431.66 : x
  2. Step 2: Convert to fraction form
    8,787,661.46/12,128,245.72 = 4,920,431.66/x
  3. Step 3: Cross multiply
    8,787,661.46x = 12,128,245.72 × 4,920,431.66
  4. Step 4: Simplify right side
    8,787,661.46x = 59,676,204,220,947.50
  5. Step 5: Solve for x
    x = 59,676,204,220,947.50/8,787,661.46
  6. Step 6: Final answer
    x = 6,790,908.42

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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.