Home / 256,656,004.40-384,984,006.60-199,325,111.60

Finding the Fourth Proportional to 256,656,004.40, 384,984,006.60 and 199,325,111.60

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Solution

The fourth proportional to 256,656,004.40, 384,984,006.60 and 199,325,111.60 is: 298,987,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,656,004.40 : 384,984,006.60 = 199,325,111.60 : x
  2. Step 2: Convert to fraction form
    256,656,004.40/384,984,006.60 = 199,325,111.60/x
  3. Step 3: Cross multiply
    256,656,004.40x = 384,984,006.60 × 199,325,111.60
  4. Step 4: Simplify right side
    256,656,004.40x = 76,736,980,079,760,144
  5. Step 5: Solve for x
    x = 76,736,980,079,760,144/256,656,004.40
  6. Step 6: Final answer
    x = 298,987,667.40

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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.