Home / 13,718,622.06-18,930,334.42-7,919,272.16

Finding the Fourth Proportional to 13,718,622.06, 18,930,334.42 and 7,919,272.16

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Solution

The fourth proportional to 13,718,622.06, 18,930,334.42 and 7,919,272.16 is: 10,927,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,622.06 : 18,930,334.42 = 7,919,272.16 : x
  2. Step 2: Convert to fraction form
    13,718,622.06/18,930,334.42 = 7,919,272.16/x
  3. Step 3: Cross multiply
    13,718,622.06x = 18,930,334.42 × 7,919,272.16
  4. Step 4: Simplify right side
    13,718,622.06x = 149,914,470,351,795.75
  5. Step 5: Solve for x
    x = 149,914,470,351,795.75/13,718,622.06
  6. Step 6: Final answer
    x = 10,927,808.18

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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.