Home / 15,106,719.06-20,847,275.55-8,231,201.19

Finding the Fourth Proportional to 15,106,719.06, 20,847,275.55 and 8,231,201.19

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Solution

The fourth proportional to 15,106,719.06, 20,847,275.55 and 8,231,201.19 is: 11,359,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106,719.06 : 20,847,275.55 = 8,231,201.19 : x
  2. Step 2: Convert to fraction form
    15,106,719.06/20,847,275.55 = 8,231,201.19/x
  3. Step 3: Cross multiply
    15,106,719.06x = 20,847,275.55 × 8,231,201.19
  4. Step 4: Simplify right side
    15,106,719.06x = 171,598,119,315,417.91
  5. Step 5: Solve for x
    x = 171,598,119,315,417.91/15,106,719.06
  6. Step 6: Final answer
    x = 11,359,059.41

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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.