Home / 13,707,907.40-20,561,861.10-5,188,521.80

Finding the Fourth Proportional to 13,707,907.40, 20,561,861.10 and 5,188,521.80

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Solution

The fourth proportional to 13,707,907.40, 20,561,861.10 and 5,188,521.80 is: 7,782,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707,907.40 : 20,561,861.10 = 5,188,521.80 : x
  2. Step 2: Convert to fraction form
    13,707,907.40/20,561,861.10 = 5,188,521.80/x
  3. Step 3: Cross multiply
    13,707,907.40x = 20,561,861.10 × 5,188,521.80
  4. Step 4: Simplify right side
    13,707,907.40x = 106,685,664,565,921.98
  5. Step 5: Solve for x
    x = 106,685,664,565,921.98/13,707,907.40
  6. Step 6: Final answer
    x = 7,782,782.70

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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.