Home / 6,517,117.65-9,780,105.15-3,638,478.90

Finding the Fourth Proportional to 6,517,117.65, 9,780,105.15 and 3,638,478.90

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Solution

The fourth proportional to 6,517,117.65, 9,780,105.15 and 3,638,478.90 is: 5,460,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517,117.65 : 9,780,105.15 = 3,638,478.90 : x
  2. Step 2: Convert to fraction form
    6,517,117.65/9,780,105.15 = 3,638,478.90/x
  3. Step 3: Cross multiply
    6,517,117.65x = 9,780,105.15 × 3,638,478.90
  4. Step 4: Simplify right side
    6,517,117.65x = 35,584,706,228,056.34
  5. Step 5: Solve for x
    x = 35,584,706,228,056.34/6,517,117.65
  6. Step 6: Final answer
    x = 5,460,190.86

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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.