Home / 20,621,550.36-28,458,190.38-11,329,240.20

Finding the Fourth Proportional to 20,621,550.36, 28,458,190.38 and 11,329,240.20

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Solution

The fourth proportional to 20,621,550.36, 28,458,190.38 and 11,329,240.20 is: 15,634,599.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621,550.36 : 28,458,190.38 = 11,329,240.20 : x
  2. Step 2: Convert to fraction form
    20,621,550.36/28,458,190.38 = 11,329,240.20/x
  3. Step 3: Cross multiply
    20,621,550.36x = 28,458,190.38 × 11,329,240.20
  4. Step 4: Simplify right side
    20,621,550.36x = 322,409,674,472,349.25
  5. Step 5: Solve for x
    x = 322,409,674,472,349.25/20,621,550.36
  6. Step 6: Final answer
    x = 15,634,599.19

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Double scale
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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.