Home / 6,628,435.40-9,921,657.90-5,200,761.80

Finding the Fourth Proportional to 6,628,435.40, 9,921,657.90 and 5,200,761.80

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Solution

The fourth proportional to 6,628,435.40, 9,921,657.90 and 5,200,761.80 is: 7,784,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628,435.40 : 9,921,657.90 = 5,200,761.80 : x
  2. Step 2: Convert to fraction form
    6,628,435.40/9,921,657.90 = 5,200,761.80/x
  3. Step 3: Cross multiply
    6,628,435.40x = 9,921,657.90 × 5,200,761.80
  4. Step 4: Simplify right side
    6,628,435.40x = 51,600,179,398,988.22
  5. Step 5: Solve for x
    x = 51,600,179,398,988.22/6,628,435.40
  6. Step 6: Final answer
    x = 7,784,669.58

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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.