Home / 13,723,900.64-18,938,922.16-7,843,436.64

Finding the Fourth Proportional to 13,723,900.64, 18,938,922.16 and 7,843,436.64

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Solution

The fourth proportional to 13,723,900.64, 18,938,922.16 and 7,843,436.64 is: 10,823,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723,900.64 : 18,938,922.16 = 7,843,436.64 : x
  2. Step 2: Convert to fraction form
    13,723,900.64/18,938,922.16 = 7,843,436.64/x
  3. Step 3: Cross multiply
    13,723,900.64x = 18,938,922.16 × 7,843,436.64
  4. Step 4: Simplify right side
    13,723,900.64x = 148,546,235,991,851.94
  5. Step 5: Solve for x
    x = 148,546,235,991,851.94/13,723,900.64
  6. Step 6: Final answer
    x = 10,823,907.86

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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.