Home / 5,313,979.20-7,971,746.40-2,789,824.80

Finding the Fourth Proportional to 5,313,979.20, 7,971,746.40 and 2,789,824.80

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Solution

The fourth proportional to 5,313,979.20, 7,971,746.40 and 2,789,824.80 is: 4,185,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313,979.20 : 7,971,746.40 = 2,789,824.80 : x
  2. Step 2: Convert to fraction form
    5,313,979.20/7,971,746.40 = 2,789,824.80/x
  3. Step 3: Cross multiply
    5,313,979.20x = 7,971,746.40 × 2,789,824.80
  4. Step 4: Simplify right side
    5,313,979.20x = 22,239,775,806,030.72
  5. Step 5: Solve for x
    x = 22,239,775,806,030.72/5,313,979.20
  6. Step 6: Final answer
    x = 4,185,145.44

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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.