Home / 18,507,742.68-25,540,420.86-10,247,012.76

Finding the Fourth Proportional to 18,507,742.68, 25,540,420.86 and 10,247,012.76

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Solution

The fourth proportional to 18,507,742.68, 25,540,420.86 and 10,247,012.76 is: 14,140,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507,742.68 : 25,540,420.86 = 10,247,012.76 : x
  2. Step 2: Convert to fraction form
    18,507,742.68/25,540,420.86 = 10,247,012.76/x
  3. Step 3: Cross multiply
    18,507,742.68x = 25,540,420.86 × 10,247,012.76
  4. Step 4: Simplify right side
    18,507,742.68x = 261,713,018,448,190.16
  5. Step 5: Solve for x
    x = 261,713,018,448,190.16/18,507,742.68
  6. Step 6: Final answer
    x = 14,140,731.42

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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.