Home / 20,392,355.90-28,142,193.74-11,099,477.16

Finding the Fourth Proportional to 20,392,355.90, 28,142,193.74 and 11,099,477.16

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Solution

The fourth proportional to 20,392,355.90, 28,142,193.74 and 11,099,477.16 is: 15,317,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,355.90 : 28,142,193.74 = 11,099,477.16 : x
  2. Step 2: Convert to fraction form
    20,392,355.90/28,142,193.74 = 11,099,477.16/x
  3. Step 3: Cross multiply
    20,392,355.90x = 28,142,193.74 × 11,099,477.16
  4. Step 4: Simplify right side
    20,392,355.90x = 312,363,636,593,927.56
  5. Step 5: Solve for x
    x = 312,363,636,593,927.56/20,392,355.90
  6. Step 6: Final answer
    x = 15,317,682.67

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1.5x scale

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.