Home / 20,180,856.70-30,271,285.05-14,122,429.30

Finding the Fourth Proportional to 20,180,856.70, 30,271,285.05 and 14,122,429.30

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Solution

The fourth proportional to 20,180,856.70, 30,271,285.05 and 14,122,429.30 is: 21,183,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180,856.70 : 30,271,285.05 = 14,122,429.30 : x
  2. Step 2: Convert to fraction form
    20,180,856.70/30,271,285.05 = 14,122,429.30/x
  3. Step 3: Cross multiply
    20,180,856.70x = 30,271,285.05 × 14,122,429.30
  4. Step 4: Simplify right side
    20,180,856.70x = 427,504,082,938,772
  5. Step 5: Solve for x
    x = 427,504,082,938,772/20,180,856.70
  6. Step 6: Final answer
    x = 21,183,643.95

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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.