Home / 20,582,899.92-28,403,742.96-11,290,338

Finding the Fourth Proportional to 20,582,899.92, 28,403,742.96 and 11,290,338

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Solution

The fourth proportional to 20,582,899.92, 28,403,742.96 and 11,290,338 is: 15,580,305.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582,899.92 : 28,403,742.96 = 11,290,338 : x
  2. Step 2: Convert to fraction form
    20,582,899.92/28,403,742.96 = 11,290,338/x
  3. Step 3: Cross multiply
    20,582,899.92x = 28,403,742.96 × 11,290,338
  4. Step 4: Simplify right side
    20,582,899.92x = 320,687,858,483,520.50
  5. Step 5: Solve for x
    x = 320,687,858,483,520.50/20,582,899.92
  6. Step 6: Final answer
    x = 15,580,305.00

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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.