Home / 13,645,081.62-18,831,864-7,766,145.27

Finding the Fourth Proportional to 13,645,081.62, 18,831,864 and 7,766,145.27

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Solution

The fourth proportional to 13,645,081.62, 18,831,864 and 7,766,145.27 is: 10,718,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645,081.62 : 18,831,864 = 7,766,145.27 : x
  2. Step 2: Convert to fraction form
    13,645,081.62/18,831,864 = 7,766,145.27/x
  3. Step 3: Cross multiply
    13,645,081.62x = 18,831,864 × 7,766,145.27
  4. Step 4: Simplify right side
    13,645,081.62x = 146,250,991,528,883.28
  5. Step 5: Solve for x
    x = 146,250,991,528,883.28/13,645,081.62
  6. Step 6: Final answer
    x = 10,718,220.35

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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.