Home / 7,078,202.40-9,767,773.35-3,938,396.39

Finding the Fourth Proportional to 7,078,202.40, 9,767,773.35 and 3,938,396.39

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Solution

The fourth proportional to 7,078,202.40, 9,767,773.35 and 3,938,396.39 is: 5,434,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078,202.40 : 9,767,773.35 = 3,938,396.39 : x
  2. Step 2: Convert to fraction form
    7,078,202.40/9,767,773.35 = 3,938,396.39/x
  3. Step 3: Cross multiply
    7,078,202.40x = 9,767,773.35 × 3,938,396.39
  4. Step 4: Simplify right side
    7,078,202.40x = 38,469,363,251,139.34
  5. Step 5: Solve for x
    x = 38,469,363,251,139.34/7,078,202.40
  6. Step 6: Final answer
    x = 5,434,905.80

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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.