Home / 18,216,360.27-25,122,298.23-15,113,969.55

Finding the Fourth Proportional to 18,216,360.27, 25,122,298.23 and 15,113,969.55

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Solution

The fourth proportional to 18,216,360.27, 25,122,298.23 and 15,113,969.55 is: 20,843,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216,360.27 : 25,122,298.23 = 15,113,969.55 : x
  2. Step 2: Convert to fraction form
    18,216,360.27/25,122,298.23 = 15,113,969.55/x
  3. Step 3: Cross multiply
    18,216,360.27x = 25,122,298.23 × 15,113,969.55
  4. Step 4: Simplify right side
    18,216,360.27x = 379,697,650,474,238.94
  5. Step 5: Solve for x
    x = 379,697,650,474,238.94/18,216,360.27
  6. Step 6: Final answer
    x = 20,843,771.47

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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.