Home / 54,641,543.20-81,993,807.60-20,587,328.80

Finding the Fourth Proportional to 54,641,543.20, 81,993,807.60 and 20,587,328.80

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Solution

The fourth proportional to 54,641,543.20, 81,993,807.60 and 20,587,328.80 is: 30,892,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,641,543.20 : 81,993,807.60 = 20,587,328.80 : x
  2. Step 2: Convert to fraction form
    54,641,543.20/81,993,807.60 = 20,587,328.80/x
  3. Step 3: Cross multiply
    54,641,543.20x = 81,993,807.60 × 20,587,328.80
  4. Step 4: Simplify right side
    54,641,543.20x = 1,688,033,476,625,138.75
  5. Step 5: Solve for x
    x = 1,688,033,476,625,138.75/54,641,543.20
  6. Step 6: Final answer
    x = 30,892,858.76

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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.