Home / 13,331,260.68-18,397,100.34-7,219,687.56

Finding the Fourth Proportional to 13,331,260.68, 18,397,100.34 and 7,219,687.56

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Solution

The fourth proportional to 13,331,260.68, 18,397,100.34 and 7,219,687.56 is: 9,963,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,260.68 : 18,397,100.34 = 7,219,687.56 : x
  2. Step 2: Convert to fraction form
    13,331,260.68/18,397,100.34 = 7,219,687.56/x
  3. Step 3: Cross multiply
    13,331,260.68x = 18,397,100.34 × 7,219,687.56
  4. Step 4: Simplify right side
    13,331,260.68x = 132,821,316,464,769.77
  5. Step 5: Solve for x
    x = 132,821,316,464,769.77/13,331,260.68
  6. Step 6: Final answer
    x = 9,963,147.50

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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.