Home / 2,811,789.20-4,217,683.80-2,681,152.40

Finding the Fourth Proportional to 2,811,789.20, 4,217,683.80 and 2,681,152.40

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Solution

The fourth proportional to 2,811,789.20, 4,217,683.80 and 2,681,152.40 is: 4,021,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,789.20 : 4,217,683.80 = 2,681,152.40 : x
  2. Step 2: Convert to fraction form
    2,811,789.20/4,217,683.80 = 2,681,152.40/x
  3. Step 3: Cross multiply
    2,811,789.20x = 4,217,683.80 × 2,681,152.40
  4. Step 4: Simplify right side
    2,811,789.20x = 11,308,253,042,811.12
  5. Step 5: Solve for x
    x = 11,308,253,042,811.12/2,811,789.20
  6. Step 6: Final answer
    x = 4,021,728.60

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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.