Home / 12,639,245.76-17,441,727.84-7,208,487.36

Finding the Fourth Proportional to 12,639,245.76, 17,441,727.84 and 7,208,487.36

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Solution

The fourth proportional to 12,639,245.76, 17,441,727.84 and 7,208,487.36 is: 9,947,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639,245.76 : 17,441,727.84 = 7,208,487.36 : x
  2. Step 2: Convert to fraction form
    12,639,245.76/17,441,727.84 = 7,208,487.36/x
  3. Step 3: Cross multiply
    12,639,245.76x = 17,441,727.84 × 7,208,487.36
  4. Step 4: Simplify right side
    12,639,245.76x = 125,728,474,671,200.11
  5. Step 5: Solve for x
    x = 125,728,474,671,200.11/12,639,245.76
  6. Step 6: Final answer
    x = 9,947,466.57

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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.