Home / 13,921,230.30-20,881,845.45-7,543,938.30

Finding the Fourth Proportional to 13,921,230.30, 20,881,845.45 and 7,543,938.30

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Solution

The fourth proportional to 13,921,230.30, 20,881,845.45 and 7,543,938.30 is: 11,315,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,230.30 : 20,881,845.45 = 7,543,938.30 : x
  2. Step 2: Convert to fraction form
    13,921,230.30/20,881,845.45 = 7,543,938.30/x
  3. Step 3: Cross multiply
    13,921,230.30x = 20,881,845.45 × 7,543,938.30
  4. Step 4: Simplify right side
    13,921,230.30x = 157,531,353,664,935.72
  5. Step 5: Solve for x
    x = 157,531,353,664,935.72/13,921,230.30
  6. Step 6: Final answer
    x = 11,315,907.45

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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.