Home / 13,644,916.80-20,440,418.40-6,918,158.40

Finding the Fourth Proportional to 13,644,916.80, 20,440,418.40 and 6,918,158.40

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Solution

The fourth proportional to 13,644,916.80, 20,440,418.40 and 6,918,158.40 is: 10,363,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644,916.80 : 20,440,418.40 = 6,918,158.40 : x
  2. Step 2: Convert to fraction form
    13,644,916.80/20,440,418.40 = 6,918,158.40/x
  3. Step 3: Cross multiply
    13,644,916.80x = 20,440,418.40 × 6,918,158.40
  4. Step 4: Simplify right side
    13,644,916.80x = 141,410,052,253,474.56
  5. Step 5: Solve for x
    x = 141,410,052,253,474.56/13,644,916.80
  6. Step 6: Final answer
    x = 10,363,570.14

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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.