Home / 12,984,378.30-17,915,222.79-8,395,177.50

Finding the Fourth Proportional to 12,984,378.30, 17,915,222.79 and 8,395,177.50

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Solution

The fourth proportional to 12,984,378.30, 17,915,222.79 and 8,395,177.50 is: 11,583,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,378.30 : 17,915,222.79 = 8,395,177.50 : x
  2. Step 2: Convert to fraction form
    12,984,378.30/17,915,222.79 = 8,395,177.50/x
  3. Step 3: Cross multiply
    12,984,378.30x = 17,915,222.79 × 8,395,177.50
  4. Step 4: Simplify right side
    12,984,378.30x = 150,401,475,274,095.22
  5. Step 5: Solve for x
    x = 150,401,475,274,095.22/12,984,378.30
  6. Step 6: Final answer
    x = 11,583,263.50

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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.