Home / 405,022,209.37-558,927,673.22-228,807,002.59

Finding the Fourth Proportional to 405,022,209.37, 558,927,673.22 and 228,807,002.59

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Solution

The fourth proportional to 405,022,209.37, 558,927,673.22 and 228,807,002.59 is: 315,751,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,022,209.37 : 558,927,673.22 = 228,807,002.59 : x
  2. Step 2: Convert to fraction form
    405,022,209.37/558,927,673.22 = 228,807,002.59/x
  3. Step 3: Cross multiply
    405,022,209.37x = 558,927,673.22 × 228,807,002.59
  4. Step 4: Simplify right side
    405,022,209.37x = 127,886,565,571,529,872
  5. Step 5: Solve for x
    x = 127,886,565,571,529,872/405,022,209.37
  6. Step 6: Final answer
    x = 315,751,982.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.