Home / 13,182,812.76-18,192,801.30-7,381,542.60

Finding the Fourth Proportional to 13,182,812.76, 18,192,801.30 and 7,381,542.60

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Solution

The fourth proportional to 13,182,812.76, 18,192,801.30 and 7,381,542.60 is: 10,186,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182,812.76 : 18,192,801.30 = 7,381,542.60 : x
  2. Step 2: Convert to fraction form
    13,182,812.76/18,192,801.30 = 7,381,542.60/x
  3. Step 3: Cross multiply
    13,182,812.76x = 18,192,801.30 × 7,381,542.60
  4. Step 4: Simplify right side
    13,182,812.76x = 134,290,937,809,285.38
  5. Step 5: Solve for x
    x = 134,290,937,809,285.38/13,182,812.76
  6. Step 6: Final answer
    x = 10,186,819.78

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1.5x scale

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.