Home / 256,023,014.32-383,879,005.72-100,390,371.64

Finding the Fourth Proportional to 256,023,014.32, 383,879,005.72 and 100,390,371.64

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Solution

The fourth proportional to 256,023,014.32, 383,879,005.72 and 100,390,371.64 is: 150,524,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,014.32 : 383,879,005.72 = 100,390,371.64 : x
  2. Step 2: Convert to fraction form
    256,023,014.32/383,879,005.72 = 100,390,371.64/x
  3. Step 3: Cross multiply
    256,023,014.32x = 383,879,005.72 × 100,390,371.64
  4. Step 4: Simplify right side
    256,023,014.32x = 38,537,756,049,024,488
  5. Step 5: Solve for x
    x = 38,537,756,049,024,488/256,023,014.32
  6. Step 6: Final answer
    x = 150,524,577.45

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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.