Home / 13,483,121.70-20,224,682.55-7,800,420.90

Finding the Fourth Proportional to 13,483,121.70, 20,224,682.55 and 7,800,420.90

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Solution

The fourth proportional to 13,483,121.70, 20,224,682.55 and 7,800,420.90 is: 11,700,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483,121.70 : 20,224,682.55 = 7,800,420.90 : x
  2. Step 2: Convert to fraction form
    13,483,121.70/20,224,682.55 = 7,800,420.90/x
  3. Step 3: Cross multiply
    13,483,121.70x = 20,224,682.55 × 7,800,420.90
  4. Step 4: Simplify right side
    13,483,121.70x = 157,761,036,458,885.31
  5. Step 5: Solve for x
    x = 157,761,036,458,885.31/13,483,121.70
  6. Step 6: Final answer
    x = 11,700,631.35

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1.5x scale

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.