Home / 8,784,278.76-12,120,581.82-5,519,201.96

Finding the Fourth Proportional to 8,784,278.76, 12,120,581.82 and 5,519,201.96

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Solution

The fourth proportional to 8,784,278.76, 12,120,581.82 and 5,519,201.96 is: 7,615,416.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784,278.76 : 12,120,581.82 = 5,519,201.96 : x
  2. Step 2: Convert to fraction form
    8,784,278.76/12,120,581.82 = 5,519,201.96/x
  3. Step 3: Cross multiply
    8,784,278.76x = 12,120,581.82 × 5,519,201.96
  4. Step 4: Simplify right side
    8,784,278.76x = 66,895,938,937,284.37
  5. Step 5: Solve for x
    x = 66,895,938,937,284.37/8,784,278.76
  6. Step 6: Final answer
    x = 7,615,416.22

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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.