Home / 20,071,254.08-30,105,660.72-7,118,045.12

Finding the Fourth Proportional to 20,071,254.08, 30,105,660.72 and 7,118,045.12

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Solution

The fourth proportional to 20,071,254.08, 30,105,660.72 and 7,118,045.12 is: 10,676,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071,254.08 : 30,105,660.72 = 7,118,045.12 : x
  2. Step 2: Convert to fraction form
    20,071,254.08/30,105,660.72 = 7,118,045.12/x
  3. Step 3: Cross multiply
    20,071,254.08x = 30,105,660.72 × 7,118,045.12
  4. Step 4: Simplify right side
    20,071,254.08x = 214,293,451,372,371.69
  5. Step 5: Solve for x
    x = 214,293,451,372,371.69/20,071,254.08
  6. Step 6: Final answer
    x = 10,676,634.88

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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.