Home / 256,023,089.26-383,879,118.03-100,390,446.70

Finding the Fourth Proportional to 256,023,089.26, 383,879,118.03 and 100,390,446.70

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Solution

The fourth proportional to 256,023,089.26, 383,879,118.03 and 100,390,446.70 is: 150,524,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,089.26 : 383,879,118.03 = 100,390,446.70 : x
  2. Step 2: Convert to fraction form
    256,023,089.26/383,879,118.03 = 100,390,446.70/x
  3. Step 3: Cross multiply
    256,023,089.26x = 383,879,118.03 × 100,390,446.70
  4. Step 4: Simplify right side
    256,023,089.26x = 38,537,796,137,833,720
  5. Step 5: Solve for x
    x = 38,537,796,137,833,720/256,023,089.26
  6. Step 6: Final answer
    x = 150,524,689.98

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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.