Home / 13,618,763.04-18,795,016.54-7,818,664.08

Finding the Fourth Proportional to 13,618,763.04, 18,795,016.54 and 7,818,664.08

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Solution

The fourth proportional to 13,618,763.04, 18,795,016.54 and 7,818,664.08 is: 10,790,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618,763.04 : 18,795,016.54 = 7,818,664.08 : x
  2. Step 2: Convert to fraction form
    13,618,763.04/18,795,016.54 = 7,818,664.08/x
  3. Step 3: Cross multiply
    13,618,763.04x = 18,795,016.54 × 7,818,664.08
  4. Step 4: Simplify right side
    13,618,763.04x = 146,951,920,704,303.88
  5. Step 5: Solve for x
    x = 146,951,920,704,303.88/13,618,763.04
  6. Step 6: Final answer
    x = 10,790,401.47

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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.