Home / 21,477,104.45-29,638,408.98-11,819,312.45

Finding the Fourth Proportional to 21,477,104.45, 29,638,408.98 and 11,819,312.45

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Solution

The fourth proportional to 21,477,104.45, 29,638,408.98 and 11,819,312.45 is: 16,310,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477,104.45 : 29,638,408.98 = 11,819,312.45 : x
  2. Step 2: Convert to fraction form
    21,477,104.45/29,638,408.98 = 11,819,312.45/x
  3. Step 3: Cross multiply
    21,477,104.45x = 29,638,408.98 × 11,819,312.45
  4. Step 4: Simplify right side
    21,477,104.45x = 350,305,616,255,505.81
  5. Step 5: Solve for x
    x = 350,305,616,255,505.81/21,477,104.45
  6. Step 6: Final answer
    x = 16,310,653.84

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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.