Home / 3,368,938.93-4,649,135.72-1,918,769.30

Finding the Fourth Proportional to 3,368,938.93, 4,649,135.72 and 1,918,769.30

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Solution

The fourth proportional to 3,368,938.93, 4,649,135.72 and 1,918,769.30 is: 2,647,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368,938.93 : 4,649,135.72 = 1,918,769.30 : x
  2. Step 2: Convert to fraction form
    3,368,938.93/4,649,135.72 = 1,918,769.30/x
  3. Step 3: Cross multiply
    3,368,938.93x = 4,649,135.72 × 1,918,769.30
  4. Step 4: Simplify right side
    3,368,938.93x = 8,920,618,907,108.49
  5. Step 5: Solve for x
    x = 8,920,618,907,108.49/3,368,938.93
  6. Step 6: Final answer
    x = 2,647,901.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.