Home / 3,900,384.89-5,382,501.87-2,181,505.41

Finding the Fourth Proportional to 3,900,384.89, 5,382,501.87 and 2,181,505.41

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Solution

The fourth proportional to 3,900,384.89, 5,382,501.87 and 2,181,505.41 is: 3,010,461.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,384.89 : 5,382,501.87 = 2,181,505.41 : x
  2. Step 2: Convert to fraction form
    3,900,384.89/5,382,501.87 = 2,181,505.41/x
  3. Step 3: Cross multiply
    3,900,384.89x = 5,382,501.87 × 2,181,505.41
  4. Step 4: Simplify right side
    3,900,384.89x = 11,741,956,948,740.12
  5. Step 5: Solve for x
    x = 11,741,956,948,740.12/3,900,384.89
  6. Step 6: Final answer
    x = 3,010,461.09

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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.