Home / 18,400,621.42-25,393,031.11-10,140,981.56

Finding the Fourth Proportional to 18,400,621.42, 25,393,031.11 and 10,140,981.56

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Solution

The fourth proportional to 18,400,621.42, 25,393,031.11 and 10,140,981.56 is: 13,994,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400,621.42 : 25,393,031.11 = 10,140,981.56 : x
  2. Step 2: Convert to fraction form
    18,400,621.42/25,393,031.11 = 10,140,981.56/x
  3. Step 3: Cross multiply
    18,400,621.42x = 25,393,031.11 × 10,140,981.56
  4. Step 4: Simplify right side
    18,400,621.42x = 257,510,260,239,016.34
  5. Step 5: Solve for x
    x = 257,510,260,239,016.34/18,400,621.42
  6. Step 6: Final answer
    x = 13,994,650.20

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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.