Home / 3,753,070.89-5,179,181.55-2,121,420.87

Finding the Fourth Proportional to 3,753,070.89, 5,179,181.55 and 2,121,420.87

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Solution

The fourth proportional to 3,753,070.89, 5,179,181.55 and 2,121,420.87 is: 2,927,528.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753,070.89 : 5,179,181.55 = 2,121,420.87 : x
  2. Step 2: Convert to fraction form
    3,753,070.89/5,179,181.55 = 2,121,420.87/x
  3. Step 3: Cross multiply
    3,753,070.89x = 5,179,181.55 × 2,121,420.87
  4. Step 4: Simplify right side
    3,753,070.89x = 10,987,223,829,688.95
  5. Step 5: Solve for x
    x = 10,987,223,829,688.95/3,753,070.89
  6. Step 6: Final answer
    x = 2,927,528.99

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1.5x scale

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.