Home / 258,064,652.80-387,096,979.20-256,273,062.40

Finding the Fourth Proportional to 258,064,652.80, 387,096,979.20 and 256,273,062.40

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Solution

The fourth proportional to 258,064,652.80, 387,096,979.20 and 256,273,062.40 is: 384,409,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,064,652.80 : 387,096,979.20 = 256,273,062.40 : x
  2. Step 2: Convert to fraction form
    258,064,652.80/387,096,979.20 = 256,273,062.40/x
  3. Step 3: Cross multiply
    258,064,652.80x = 387,096,979.20 × 256,273,062.40
  4. Step 4: Simplify right side
    258,064,652.80x = 99,202,528,305,373,104
  5. Step 5: Solve for x
    x = 99,202,528,305,373,104/258,064,652.80
  6. Step 6: Final answer
    x = 384,409,593.60

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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.