Home / 20,693,999.20-31,045,664.40-6,317,730.40

Finding the Fourth Proportional to 20,693,999.20, 31,045,664.40 and 6,317,730.40

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Solution

The fourth proportional to 20,693,999.20, 31,045,664.40 and 6,317,730.40 is: 9,478,019.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,999.20 : 31,045,664.40 = 6,317,730.40 : x
  2. Step 2: Convert to fraction form
    20,693,999.20/31,045,664.40 = 6,317,730.40/x
  3. Step 3: Cross multiply
    20,693,999.20x = 31,045,664.40 × 6,317,730.40
  4. Step 4: Simplify right side
    20,693,999.20x = 196,138,137,768,077.75
  5. Step 5: Solve for x
    x = 196,138,137,768,077.75/20,693,999.20
  6. Step 6: Final answer
    x = 9,478,019.97

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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.