Home / 7,202,114.18-9,938,778.31-3,938,918.81

Finding the Fourth Proportional to 7,202,114.18, 9,938,778.31 and 3,938,918.81

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Solution

The fourth proportional to 7,202,114.18, 9,938,778.31 and 3,938,918.81 is: 5,435,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202,114.18 : 9,938,778.31 = 3,938,918.81 : x
  2. Step 2: Convert to fraction form
    7,202,114.18/9,938,778.31 = 3,938,918.81/x
  3. Step 3: Cross multiply
    7,202,114.18x = 9,938,778.31 × 3,938,918.81
  4. Step 4: Simplify right side
    7,202,114.18x = 39,148,040,848,678.66
  5. Step 5: Solve for x
    x = 39,148,040,848,678.66/7,202,114.18
  6. Step 6: Final answer
    x = 5,435,631.80

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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.