Home / 21,219,225.44-31,765,397.36-12,995,975.24

Finding the Fourth Proportional to 21,219,225.44, 31,765,397.36 and 12,995,975.24

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Solution

The fourth proportional to 21,219,225.44, 31,765,397.36 and 12,995,975.24 is: 19,455,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219,225.44 : 31,765,397.36 = 12,995,975.24 : x
  2. Step 2: Convert to fraction form
    21,219,225.44/31,765,397.36 = 12,995,975.24/x
  3. Step 3: Cross multiply
    21,219,225.44x = 31,765,397.36 × 12,995,975.24
  4. Step 4: Simplify right side
    21,219,225.44x = 412,822,317,579,321.38
  5. Step 5: Solve for x
    x = 412,822,317,579,321.38/21,219,225.44
  6. Step 6: Final answer
    x = 19,455,107.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.