Home / 21,580,561.20-29,780,822.10-11,790,794.70

Finding the Fourth Proportional to 21,580,561.20, 29,780,822.10 and 11,790,794.70

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Solution

The fourth proportional to 21,580,561.20, 29,780,822.10 and 11,790,794.70 is: 16,271,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,561.20 : 29,780,822.10 = 11,790,794.70 : x
  2. Step 2: Convert to fraction form
    21,580,561.20/29,780,822.10 = 11,790,794.70/x
  3. Step 3: Cross multiply
    21,580,561.20x = 29,780,822.10 × 11,790,794.70
  4. Step 4: Simplify right side
    21,580,561.20x = 351,139,559,378,322.88
  5. Step 5: Solve for x
    x = 351,139,559,378,322.88/21,580,561.20
  6. Step 6: Final answer
    x = 16,271,104.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.