Home / 13,718,621.06-18,930,333.04-7,919,271.16

Finding the Fourth Proportional to 13,718,621.06, 18,930,333.04 and 7,919,271.16

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Solution

The fourth proportional to 13,718,621.06, 18,930,333.04 and 7,919,271.16 is: 10,927,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,621.06 : 18,930,333.04 = 7,919,271.16 : x
  2. Step 2: Convert to fraction form
    13,718,621.06/18,930,333.04 = 7,919,271.16/x
  3. Step 3: Cross multiply
    13,718,621.06x = 18,930,333.04 × 7,919,271.16
  4. Step 4: Simplify right side
    13,718,621.06x = 149,914,440,492,867.12
  5. Step 5: Solve for x
    x = 149,914,440,492,867.12/13,718,621.06
  6. Step 6: Final answer
    x = 10,927,806.80

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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.