Home / 5,382,814.20-8,074,221.30-5,311,955.40

Finding the Fourth Proportional to 5,382,814.20, 8,074,221.30 and 5,311,955.40

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Solution

The fourth proportional to 5,382,814.20, 8,074,221.30 and 5,311,955.40 is: 7,967,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382,814.20 : 8,074,221.30 = 5,311,955.40 : x
  2. Step 2: Convert to fraction form
    5,382,814.20/8,074,221.30 = 5,311,955.40/x
  3. Step 3: Cross multiply
    5,382,814.20x = 8,074,221.30 × 5,311,955.40
  4. Step 4: Simplify right side
    5,382,814.20x = 42,889,903,435,330.02
  5. Step 5: Solve for x
    x = 42,889,903,435,330.02/5,382,814.20
  6. Step 6: Final answer
    x = 7,967,933.10

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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.