Home / 3,991,225.19-5,507,889.03-2,155,682.77

Finding the Fourth Proportional to 3,991,225.19, 5,507,889.03 and 2,155,682.77

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Solution

The fourth proportional to 3,991,225.19, 5,507,889.03 and 2,155,682.77 is: 2,974,841.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,225.19 : 5,507,889.03 = 2,155,682.77 : x
  2. Step 2: Convert to fraction form
    3,991,225.19/5,507,889.03 = 2,155,682.77/x
  3. Step 3: Cross multiply
    3,991,225.19x = 5,507,889.03 × 2,155,682.77
  4. Step 4: Simplify right side
    3,991,225.19x = 11,873,261,467,273.29
  5. Step 5: Solve for x
    x = 11,873,261,467,273.29/3,991,225.19
  6. Step 6: Final answer
    x = 2,974,841.29

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Half scale
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Double scale
Find fourth proportional to 3,991,226.19, 5,507,890.41 and 2,155,683.77
Similar ratio
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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.