Home / 13,993,940.80-21,000,242.40-6,417,006.40

Finding the Fourth Proportional to 13,993,940.80, 21,000,242.40 and 6,417,006.40

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Solution

The fourth proportional to 13,993,940.80, 21,000,242.40 and 6,417,006.40 is: 9,629,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993,940.80 : 21,000,242.40 = 6,417,006.40 : x
  2. Step 2: Convert to fraction form
    13,993,940.80/21,000,242.40 = 6,417,006.40/x
  3. Step 3: Cross multiply
    13,993,940.80x = 21,000,242.40 × 6,417,006.40
  4. Step 4: Simplify right side
    13,993,940.80x = 134,758,689,882,351.36
  5. Step 5: Solve for x
    x = 134,758,689,882,351.36/13,993,940.80
  6. Step 6: Final answer
    x = 9,629,788.48

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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.