Home / 21,993,770.40-32,990,655.60-11,790,103.20

Finding the Fourth Proportional to 21,993,770.40, 32,990,655.60 and 11,790,103.20

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Solution

The fourth proportional to 21,993,770.40, 32,990,655.60 and 11,790,103.20 is: 17,685,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993,770.40 : 32,990,655.60 = 11,790,103.20 : x
  2. Step 2: Convert to fraction form
    21,993,770.40/32,990,655.60 = 11,790,103.20/x
  3. Step 3: Cross multiply
    21,993,770.40x = 32,990,655.60 × 11,790,103.20
  4. Step 4: Simplify right side
    21,993,770.40x = 388,963,234,159,657.94
  5. Step 5: Solve for x
    x = 388,963,234,159,657.94/21,993,770.40
  6. Step 6: Final answer
    x = 17,685,154.80

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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.