Home / 20,213,302.30-30,319,953.45-7,431,162.10

Finding the Fourth Proportional to 20,213,302.30, 30,319,953.45 and 7,431,162.10

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Solution

The fourth proportional to 20,213,302.30, 30,319,953.45 and 7,431,162.10 is: 11,146,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,302.30 : 30,319,953.45 = 7,431,162.10 : x
  2. Step 2: Convert to fraction form
    20,213,302.30/30,319,953.45 = 7,431,162.10/x
  3. Step 3: Cross multiply
    20,213,302.30x = 30,319,953.45 × 7,431,162.10
  4. Step 4: Simplify right side
    20,213,302.30x = 225,312,488,951,404.22
  5. Step 5: Solve for x
    x = 225,312,488,951,404.22/20,213,302.30
  6. Step 6: Final answer
    x = 11,146,743.15

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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.