Home / 8,907,907.80-13,361,861.70-6,640,426.20

Finding the Fourth Proportional to 8,907,907.80, 13,361,861.70 and 6,640,426.20

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Solution

The fourth proportional to 8,907,907.80, 13,361,861.70 and 6,640,426.20 is: 9,960,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907,907.80 : 13,361,861.70 = 6,640,426.20 : x
  2. Step 2: Convert to fraction form
    8,907,907.80/13,361,861.70 = 6,640,426.20/x
  3. Step 3: Cross multiply
    8,907,907.80x = 13,361,861.70 × 6,640,426.20
  4. Step 4: Simplify right side
    8,907,907.80x = 88,728,456,513,456.53
  5. Step 5: Solve for x
    x = 88,728,456,513,456.53/8,907,907.80
  6. Step 6: Final answer
    x = 9,960,639.30

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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.