Home / 10,401,128.40-15,601,692.60-7,881,704.40

Finding the Fourth Proportional to 10,401,128.40, 15,601,692.60 and 7,881,704.40

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Solution

The fourth proportional to 10,401,128.40, 15,601,692.60 and 7,881,704.40 is: 11,822,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401,128.40 : 15,601,692.60 = 7,881,704.40 : x
  2. Step 2: Convert to fraction form
    10,401,128.40/15,601,692.60 = 7,881,704.40/x
  3. Step 3: Cross multiply
    10,401,128.40x = 15,601,692.60 × 7,881,704.40
  4. Step 4: Simplify right side
    10,401,128.40x = 122,967,929,212,867.44
  5. Step 5: Solve for x
    x = 122,967,929,212,867.44/10,401,128.40
  6. Step 6: Final answer
    x = 11,822,556.60

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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.