Home / 21,385,903.80-32,078,855.70-12,882,847.80

Finding the Fourth Proportional to 21,385,903.80, 32,078,855.70 and 12,882,847.80

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Solution

The fourth proportional to 21,385,903.80, 32,078,855.70 and 12,882,847.80 is: 19,324,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,903.80 : 32,078,855.70 = 12,882,847.80 : x
  2. Step 2: Convert to fraction form
    21,385,903.80/32,078,855.70 = 12,882,847.80/x
  3. Step 3: Cross multiply
    21,385,903.80x = 32,078,855.70 × 12,882,847.80
  4. Step 4: Simplify right side
    21,385,903.80x = 413,267,015,581,262.50
  5. Step 5: Solve for x
    x = 413,267,015,581,262.50/21,385,903.80
  6. Step 6: Final answer
    x = 19,324,271.70

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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.