Home / 21,477,185.40-29,638,520.55-11,819,393.40

Finding the Fourth Proportional to 21,477,185.40, 29,638,520.55 and 11,819,393.40

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Solution

The fourth proportional to 21,477,185.40, 29,638,520.55 and 11,819,393.40 is: 16,310,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477,185.40 : 29,638,520.55 = 11,819,393.40 : x
  2. Step 2: Convert to fraction form
    21,477,185.40/29,638,520.55 = 11,819,393.40/x
  3. Step 3: Cross multiply
    21,477,185.40x = 29,638,520.55 × 11,819,393.40
  4. Step 4: Simplify right side
    21,477,185.40x = 350,309,334,174,434.38
  5. Step 5: Solve for x
    x = 350,309,334,174,434.38/21,477,185.40
  6. Step 6: Final answer
    x = 16,310,765.48

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Double scale
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Similar ratio
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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.