Home / 256,023,015.32-383,879,007.22-100,390,372.64

Finding the Fourth Proportional to 256,023,015.32, 383,879,007.22 and 100,390,372.64

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Solution

The fourth proportional to 256,023,015.32, 383,879,007.22 and 100,390,372.64 is: 150,524,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,015.32 : 383,879,007.22 = 100,390,372.64 : x
  2. Step 2: Convert to fraction form
    256,023,015.32/383,879,007.22 = 100,390,372.64/x
  3. Step 3: Cross multiply
    256,023,015.32x = 383,879,007.22 × 100,390,372.64
  4. Step 4: Simplify right side
    256,023,015.32x = 38,537,756,583,489,056
  5. Step 5: Solve for x
    x = 38,537,756,583,489,056/256,023,015.32
  6. Step 6: Final answer
    x = 150,524,578.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.