Home / 3,938,951.04-5,435,755.20-2,128,114.56

Finding the Fourth Proportional to 3,938,951.04, 5,435,755.20 and 2,128,114.56

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Solution

The fourth proportional to 3,938,951.04, 5,435,755.20 and 2,128,114.56 is: 2,936,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,951.04 : 5,435,755.20 = 2,128,114.56 : x
  2. Step 2: Convert to fraction form
    3,938,951.04/5,435,755.20 = 2,128,114.56/x
  3. Step 3: Cross multiply
    3,938,951.04x = 5,435,755.20 × 2,128,114.56
  4. Step 4: Simplify right side
    3,938,951.04x = 11,567,909,785,715.71
  5. Step 5: Solve for x
    x = 11,567,909,785,715.71/3,938,951.04
  6. Step 6: Final answer
    x = 2,936,799.59

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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.