Home / 20,915,852.22-28,864,576.96-11,623,813.88

Finding the Fourth Proportional to 20,915,852.22, 28,864,576.96 and 11,623,813.88

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Solution

The fourth proportional to 20,915,852.22, 28,864,576.96 and 11,623,813.88 is: 16,041,252.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,852.22 : 28,864,576.96 = 11,623,813.88 : x
  2. Step 2: Convert to fraction form
    20,915,852.22/28,864,576.96 = 11,623,813.88/x
  3. Step 3: Cross multiply
    20,915,852.22x = 28,864,576.96 × 11,623,813.88
  4. Step 4: Simplify right side
    20,915,852.22x = 335,516,470,307,976.25
  5. Step 5: Solve for x
    x = 335,516,470,307,976.25/20,915,852.22
  6. Step 6: Final answer
    x = 16,041,252.67

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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.