Home / 56,684,145.28-85,039,709.76-18,345,659.52

Finding the Fourth Proportional to 56,684,145.28, 85,039,709.76 and 18,345,659.52

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Solution

The fourth proportional to 56,684,145.28, 85,039,709.76 and 18,345,659.52 is: 27,522,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,684,145.28 : 85,039,709.76 = 18,345,659.52 : x
  2. Step 2: Convert to fraction form
    56,684,145.28/85,039,709.76 = 18,345,659.52/x
  3. Step 3: Cross multiply
    56,684,145.28x = 85,039,709.76 × 18,345,659.52
  4. Step 4: Simplify right side
    56,684,145.28x = 1,560,109,560,936,581
  5. Step 5: Solve for x
    x = 1,560,109,560,936,581/56,684,145.28
  6. Step 6: Final answer
    x = 27,522,855.87

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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.