Home / 21,979,170.23-30,327,244.40-12,683,349.05

Finding the Fourth Proportional to 21,979,170.23, 30,327,244.40 and 12,683,349.05

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Solution

The fourth proportional to 21,979,170.23, 30,327,244.40 and 12,683,349.05 is: 17,500,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979,170.23 : 30,327,244.40 = 12,683,349.05 : x
  2. Step 2: Convert to fraction form
    21,979,170.23/30,327,244.40 = 12,683,349.05/x
  3. Step 3: Cross multiply
    21,979,170.23x = 30,327,244.40 × 12,683,349.05
  4. Step 4: Simplify right side
    21,979,170.23x = 384,651,026,449,857.81
  5. Step 5: Solve for x
    x = 384,651,026,449,857.81/21,979,170.23
  6. Step 6: Final answer
    x = 17,500,707.37

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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.