Home / 5,457,975.20-8,191,628.40-2,430,000.80

Finding the Fourth Proportional to 5,457,975.20, 8,191,628.40 and 2,430,000.80

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Solution

The fourth proportional to 5,457,975.20, 8,191,628.40 and 2,430,000.80 is: 3,647,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457,975.20 : 8,191,628.40 = 2,430,000.80 : x
  2. Step 2: Convert to fraction form
    5,457,975.20/8,191,628.40 = 2,430,000.80/x
  3. Step 3: Cross multiply
    5,457,975.20x = 8,191,628.40 × 2,430,000.80
  4. Step 4: Simplify right side
    5,457,975.20x = 19,905,663,565,302.72
  5. Step 5: Solve for x
    x = 19,905,663,565,302.72/5,457,975.20
  6. Step 6: Final answer
    x = 3,647,078.42

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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.