Home / 256,987,129.12-384,667,478.16-164,747,595.04

Finding the Fourth Proportional to 256,987,129.12, 384,667,478.16 and 164,747,595.04

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Solution

The fourth proportional to 256,987,129.12, 384,667,478.16 and 164,747,595.04 is: 246,600,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,987,129.12 : 384,667,478.16 = 164,747,595.04 : x
  2. Step 2: Convert to fraction form
    256,987,129.12/384,667,478.16 = 164,747,595.04/x
  3. Step 3: Cross multiply
    256,987,129.12x = 384,667,478.16 × 164,747,595.04
  4. Step 4: Simplify right side
    256,987,129.12x = 63,373,041,916,961,728
  5. Step 5: Solve for x
    x = 63,373,041,916,961,728/256,987,129.12
  6. Step 6: Final answer
    x = 246,600,061.78

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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.