Home / 7,727,139.49-10,662,919.08-4,289,109.88

Finding the Fourth Proportional to 7,727,139.49, 10,662,919.08 and 4,289,109.88

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Solution

The fourth proportional to 7,727,139.49, 10,662,919.08 and 4,289,109.88 is: 5,918,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727,139.49 : 10,662,919.08 = 4,289,109.88 : x
  2. Step 2: Convert to fraction form
    7,727,139.49/10,662,919.08 = 4,289,109.88/x
  3. Step 3: Cross multiply
    7,727,139.49x = 10,662,919.08 × 4,289,109.88
  4. Step 4: Simplify right side
    7,727,139.49x = 45,734,431,522,353.91
  5. Step 5: Solve for x
    x = 45,734,431,522,353.91/7,727,139.49
  6. Step 6: Final answer
    x = 5,918,675.55

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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.