Home / 5,388,811.20-8,083,216.80-5,317,952.40

Finding the Fourth Proportional to 5,388,811.20, 8,083,216.80 and 5,317,952.40

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Solution

The fourth proportional to 5,388,811.20, 8,083,216.80 and 5,317,952.40 is: 7,976,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388,811.20 : 8,083,216.80 = 5,317,952.40 : x
  2. Step 2: Convert to fraction form
    5,388,811.20/8,083,216.80 = 5,317,952.40/x
  3. Step 3: Cross multiply
    5,388,811.20x = 8,083,216.80 × 5,317,952.40
  4. Step 4: Simplify right side
    5,388,811.20x = 42,986,162,181,280.32
  5. Step 5: Solve for x
    x = 42,986,162,181,280.32/5,388,811.20
  6. Step 6: Final answer
    x = 7,976,928.60

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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.