Home / 283,505,999.40-425,258,999.10-206,021,901.60

Finding the Fourth Proportional to 283,505,999.40, 425,258,999.10 and 206,021,901.60

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Solution

The fourth proportional to 283,505,999.40, 425,258,999.10 and 206,021,901.60 is: 309,032,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,505,999.40 : 425,258,999.10 = 206,021,901.60 : x
  2. Step 2: Convert to fraction form
    283,505,999.40/425,258,999.10 = 206,021,901.60/x
  3. Step 3: Cross multiply
    283,505,999.40x = 425,258,999.10 × 206,021,901.60
  4. Step 4: Simplify right side
    283,505,999.40x = 87,612,667,667,094,688
  5. Step 5: Solve for x
    x = 87,612,667,667,094,688/283,505,999.40
  6. Step 6: Final answer
    x = 309,032,852.40

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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.