Home / 256,023,105.81-383,879,142.96-100,390,463.16

Finding the Fourth Proportional to 256,023,105.81, 383,879,142.96 and 100,390,463.16

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Solution

The fourth proportional to 256,023,105.81, 383,879,142.96 and 100,390,463.16 is: 150,524,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,105.81 : 383,879,142.96 = 100,390,463.16 : x
  2. Step 2: Convert to fraction form
    256,023,105.81/383,879,142.96 = 100,390,463.16/x
  3. Step 3: Cross multiply
    256,023,105.81x = 383,879,142.96 × 100,390,463.16
  4. Step 4: Simplify right side
    256,023,105.81x = 38,537,804,959,218,248
  5. Step 5: Solve for x
    x = 38,537,804,959,218,248/256,023,105.81
  6. Step 6: Final answer
    x = 150,524,714.70

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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.