Home / 20,783,551.24-31,167,354.30-7,134,154.12

Finding the Fourth Proportional to 20,783,551.24, 31,167,354.30 and 7,134,154.12

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Solution

The fourth proportional to 20,783,551.24, 31,167,354.30 and 7,134,154.12 is: 10,698,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,551.24 : 31,167,354.30 = 7,134,154.12 : x
  2. Step 2: Convert to fraction form
    20,783,551.24/31,167,354.30 = 7,134,154.12/x
  3. Step 3: Cross multiply
    20,783,551.24x = 31,167,354.30 × 7,134,154.12
  4. Step 4: Simplify right side
    20,783,551.24x = 222,352,709,088,844.72
  5. Step 5: Solve for x
    x = 222,352,709,088,844.72/20,783,551.24
  6. Step 6: Final answer
    x = 10,698,494.52

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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.