Home / 7,310,191.68-10,965,650.40-1,918,857.60

Finding the Fourth Proportional to 7,310,191.68, 10,965,650.40 and 1,918,857.60

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Solution

The fourth proportional to 7,310,191.68, 10,965,650.40 and 1,918,857.60 is: 2,878,381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310,191.68 : 10,965,650.40 = 1,918,857.60 : x
  2. Step 2: Convert to fraction form
    7,310,191.68/10,965,650.40 = 1,918,857.60/x
  3. Step 3: Cross multiply
    7,310,191.68x = 10,965,650.40 × 1,918,857.60
  4. Step 4: Simplify right side
    7,310,191.68x = 21,041,521,608,983.04
  5. Step 5: Solve for x
    x = 21,041,521,608,983.04/7,310,191.68
  6. Step 6: Final answer
    x = 2,878,381.65

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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.