Home / 13,319,260.79-18,380,579.89-7,207,689.29

Finding the Fourth Proportional to 13,319,260.79, 18,380,579.89 and 7,207,689.29

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Solution

The fourth proportional to 13,319,260.79, 18,380,579.89 and 7,207,689.29 is: 9,946,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,260.79 : 18,380,579.89 = 7,207,689.29 : x
  2. Step 2: Convert to fraction form
    13,319,260.79/18,380,579.89 = 7,207,689.29/x
  3. Step 3: Cross multiply
    13,319,260.79x = 18,380,579.89 × 7,207,689.29
  4. Step 4: Simplify right side
    13,319,260.79x = 132,481,508,707,220.25
  5. Step 5: Solve for x
    x = 132,481,508,707,220.25/13,319,260.79
  6. Step 6: Final answer
    x = 9,946,611.22

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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.