Home / 15,219,568.88-21,003,000-8,343,903.36

Finding the Fourth Proportional to 15,219,568.88, 21,003,000 and 8,343,903.36

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Solution

The fourth proportional to 15,219,568.88, 21,003,000 and 8,343,903.36 is: 11,514,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219,568.88 : 21,003,000 = 8,343,903.36 : x
  2. Step 2: Convert to fraction form
    15,219,568.88/21,003,000 = 8,343,903.36/x
  3. Step 3: Cross multiply
    15,219,568.88x = 21,003,000 × 8,343,903.36
  4. Step 4: Simplify right side
    15,219,568.88x = 175,247,002,270,080
  5. Step 5: Solve for x
    x = 175,247,002,270,080/15,219,568.88
  6. Step 6: Final answer
    x = 11,514,583.87

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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.