Home / 21,008,501.44-28,991,952.93-11,841,144.19

Finding the Fourth Proportional to 21,008,501.44, 28,991,952.93 and 11,841,144.19

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Solution

The fourth proportional to 21,008,501.44, 28,991,952.93 and 11,841,144.19 is: 16,340,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,501.44 : 28,991,952.93 = 11,841,144.19 : x
  2. Step 2: Convert to fraction form
    21,008,501.44/28,991,952.93 = 11,841,144.19/x
  3. Step 3: Cross multiply
    21,008,501.44x = 28,991,952.93 × 11,841,144.19
  4. Step 4: Simplify right side
    21,008,501.44x = 343,297,894,993,822.94
  5. Step 5: Solve for x
    x = 343,297,894,993,822.94/21,008,501.44
  6. Step 6: Final answer
    x = 16,340,903.51

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Double scale
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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.