Home / 221,779,369.75-332,669,618.07-90,621,645.41

Finding the Fourth Proportional to 221,779,369.75, 332,669,618.07 and 90,621,645.41

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Solution

The fourth proportional to 221,779,369.75, 332,669,618.07 and 90,621,645.41 is: 135,932,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,779,369.75 : 332,669,618.07 = 90,621,645.41 : x
  2. Step 2: Convert to fraction form
    221,779,369.75/332,669,618.07 = 90,621,645.41/x
  3. Step 3: Cross multiply
    221,779,369.75x = 332,669,618.07 × 90,621,645.41
  4. Step 4: Simplify right side
    221,779,369.75x = 30,147,068,165,303,212
  5. Step 5: Solve for x
    x = 30,147,068,165,303,212/221,779,369.75
  6. Step 6: Final answer
    x = 135,932,698.34

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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.