Home / 7,088,403.20-9,781,996.80-3,869,139.20

Finding the Fourth Proportional to 7,088,403.20, 9,781,996.80 and 3,869,139.20

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Solution

The fourth proportional to 7,088,403.20, 9,781,996.80 and 3,869,139.20 is: 5,339,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088,403.20 : 9,781,996.80 = 3,869,139.20 : x
  2. Step 2: Convert to fraction form
    7,088,403.20/9,781,996.80 = 3,869,139.20/x
  3. Step 3: Cross multiply
    7,088,403.20x = 9,781,996.80 × 3,869,139.20
  4. Step 4: Simplify right side
    7,088,403.20x = 37,847,907,273,154.56
  5. Step 5: Solve for x
    x = 37,847,907,273,154.56/7,088,403.20
  6. Step 6: Final answer
    x = 5,339,412.31

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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.