Home / 305,004,295.40-420,910,188.90-165,775,015.40

Finding the Fourth Proportional to 305,004,295.40, 420,910,188.90 and 165,775,015.40

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Solution

The fourth proportional to 305,004,295.40, 420,910,188.90 and 165,775,015.40 is: 228,771,837.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,004,295.40 : 420,910,188.90 = 165,775,015.40 : x
  2. Step 2: Convert to fraction form
    305,004,295.40/420,910,188.90 = 165,775,015.40/x
  3. Step 3: Cross multiply
    305,004,295.40x = 420,910,188.90 × 165,775,015.40
  4. Step 4: Simplify right side
    305,004,295.40x = 69,776,393,046,914,408
  5. Step 5: Solve for x
    x = 69,776,393,046,914,408/305,004,295.40
  6. Step 6: Final answer
    x = 228,771,837.31

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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.