Home / 12,540,160.80-18,810,241.20-7,501,312.80

Finding the Fourth Proportional to 12,540,160.80, 18,810,241.20 and 7,501,312.80

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Solution

The fourth proportional to 12,540,160.80, 18,810,241.20 and 7,501,312.80 is: 11,251,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540,160.80 : 18,810,241.20 = 7,501,312.80 : x
  2. Step 2: Convert to fraction form
    12,540,160.80/18,810,241.20 = 7,501,312.80/x
  3. Step 3: Cross multiply
    12,540,160.80x = 18,810,241.20 × 7,501,312.80
  4. Step 4: Simplify right side
    12,540,160.80x = 141,101,503,084,647.34
  5. Step 5: Solve for x
    x = 141,101,503,084,647.34/12,540,160.80
  6. Step 6: Final answer
    x = 11,251,969.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.