Home / 7,168,979.22-9,893,192.34-3,905,793.87

Finding the Fourth Proportional to 7,168,979.22, 9,893,192.34 and 3,905,793.87

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Solution

The fourth proportional to 7,168,979.22, 9,893,192.34 and 3,905,793.87 is: 5,389,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,979.22 : 9,893,192.34 = 3,905,793.87 : x
  2. Step 2: Convert to fraction form
    7,168,979.22/9,893,192.34 = 3,905,793.87/x
  3. Step 3: Cross multiply
    7,168,979.22x = 9,893,192.34 × 3,905,793.87
  4. Step 4: Simplify right side
    7,168,979.22x = 38,640,769,996,302.95
  5. Step 5: Solve for x
    x = 38,640,769,996,302.95/7,168,979.22
  6. Step 6: Final answer
    x = 5,389,996.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.