Home / 405,022,209.12-558,927,672.93-228,807,002.34

Finding the Fourth Proportional to 405,022,209.12, 558,927,672.93 and 228,807,002.34

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Solution

The fourth proportional to 405,022,209.12, 558,927,672.93 and 228,807,002.34 is: 315,751,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,022,209.12 : 558,927,672.93 = 228,807,002.34 : x
  2. Step 2: Convert to fraction form
    405,022,209.12/558,927,672.93 = 228,807,002.34/x
  3. Step 3: Cross multiply
    405,022,209.12x = 558,927,672.93 × 228,807,002.34
  4. Step 4: Simplify right side
    405,022,209.12x = 127,886,565,367,985,248
  5. Step 5: Solve for x
    x = 127,886,565,367,985,248/405,022,209.12
  6. Step 6: Final answer
    x = 315,751,982.21

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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.