Home / 256,023,026.35-383,879,023.71-100,390,383.70

Finding the Fourth Proportional to 256,023,026.35, 383,879,023.71 and 100,390,383.70

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Solution

The fourth proportional to 256,023,026.35, 383,879,023.71 and 100,390,383.70 is: 150,524,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,026.35 : 383,879,023.71 = 100,390,383.70 : x
  2. Step 2: Convert to fraction form
    256,023,026.35/383,879,023.71 = 100,390,383.70/x
  3. Step 3: Cross multiply
    256,023,026.35x = 383,879,023.71 × 100,390,383.70
  4. Step 4: Simplify right side
    256,023,026.35x = 38,537,762,484,628,296
  5. Step 5: Solve for x
    x = 38,537,762,484,628,296/256,023,026.35
  6. Step 6: Final answer
    x = 150,524,595.52

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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.