Home / 290,303,783.72-400,619,044.92-159,923,591.72

Finding the Fourth Proportional to 290,303,783.72, 400,619,044.92 and 159,923,591.72

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Solution

The fourth proportional to 290,303,783.72, 400,619,044.92 and 159,923,591.72 is: 220,694,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303,783.72 : 400,619,044.92 = 159,923,591.72 : x
  2. Step 2: Convert to fraction form
    290,303,783.72/400,619,044.92 = 159,923,591.72/x
  3. Step 3: Cross multiply
    290,303,783.72x = 400,619,044.92 × 159,923,591.72
  4. Step 4: Simplify right side
    290,303,783.72x = 64,068,436,575,042,424
  5. Step 5: Solve for x
    x = 64,068,436,575,042,424/290,303,783.72
  6. Step 6: Final answer
    x = 220,694,459.28

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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.