Home / 5,200,239.60-7,800,359.40-2,680,815.60

Finding the Fourth Proportional to 5,200,239.60, 7,800,359.40 and 2,680,815.60

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Solution

The fourth proportional to 5,200,239.60, 7,800,359.40 and 2,680,815.60 is: 4,021,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200,239.60 : 7,800,359.40 = 2,680,815.60 : x
  2. Step 2: Convert to fraction form
    5,200,239.60/7,800,359.40 = 2,680,815.60/x
  3. Step 3: Cross multiply
    5,200,239.60x = 7,800,359.40 × 2,680,815.60
  4. Step 4: Simplify right side
    5,200,239.60x = 20,911,325,165,126.64
  5. Step 5: Solve for x
    x = 20,911,325,165,126.64/5,200,239.60
  6. Step 6: Final answer
    x = 4,021,223.40

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1.5x scale

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.