Home / 13,278,326.76-18,323,910.72-7,477,178.04

Finding the Fourth Proportional to 13,278,326.76, 18,323,910.72 and 7,477,178.04

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Solution

The fourth proportional to 13,278,326.76, 18,323,910.72 and 7,477,178.04 is: 10,318,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278,326.76 : 18,323,910.72 = 7,477,178.04 : x
  2. Step 2: Convert to fraction form
    13,278,326.76/18,323,910.72 = 7,477,178.04/x
  3. Step 3: Cross multiply
    13,278,326.76x = 18,323,910.72 × 7,477,178.04
  4. Step 4: Simplify right side
    13,278,326.76x = 137,011,142,842,504.58
  5. Step 5: Solve for x
    x = 137,011,142,842,504.58/13,278,326.76
  6. Step 6: Final answer
    x = 10,318,404.22

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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.