Home / 203,490,866.96-305,337,258.88-80,666,588.24

Finding the Fourth Proportional to 203,490,866.96, 305,337,258.88 and 80,666,588.24

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Solution

The fourth proportional to 203,490,866.96, 305,337,258.88 and 80,666,588.24 is: 121,039,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,490,866.96 : 305,337,258.88 = 80,666,588.24 : x
  2. Step 2: Convert to fraction form
    203,490,866.96/305,337,258.88 = 80,666,588.24/x
  3. Step 3: Cross multiply
    203,490,866.96x = 305,337,258.88 × 80,666,588.24
  4. Step 4: Simplify right side
    203,490,866.96x = 24,630,514,936,403,240
  5. Step 5: Solve for x
    x = 24,630,514,936,403,240/203,490,866.96
  6. Step 6: Final answer
    x = 121,039,903.68

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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.