Home / 256,023,026.85-383,879,024.46-100,390,384.20

Finding the Fourth Proportional to 256,023,026.85, 383,879,024.46 and 100,390,384.20

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Solution

The fourth proportional to 256,023,026.85, 383,879,024.46 and 100,390,384.20 is: 150,524,596.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,026.85 : 383,879,024.46 = 100,390,384.20 : x
  2. Step 2: Convert to fraction form
    256,023,026.85/383,879,024.46 = 100,390,384.20/x
  3. Step 3: Cross multiply
    256,023,026.85x = 383,879,024.46 × 100,390,384.20
  4. Step 4: Simplify right side
    256,023,026.85x = 38,537,762,751,860,600
  5. Step 5: Solve for x
    x = 38,537,762,751,860,600/256,023,026.85
  6. Step 6: Final answer
    x = 150,524,596.27

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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.