Home / 20,212,883.80-30,319,325.70-7,430,743.60

Finding the Fourth Proportional to 20,212,883.80, 30,319,325.70 and 7,430,743.60

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Solution

The fourth proportional to 20,212,883.80, 30,319,325.70 and 7,430,743.60 is: 11,146,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,883.80 : 30,319,325.70 = 7,430,743.60 : x
  2. Step 2: Convert to fraction form
    20,212,883.80/30,319,325.70 = 7,430,743.60/x
  3. Step 3: Cross multiply
    20,212,883.80x = 30,319,325.70 × 7,430,743.60
  4. Step 4: Simplify right side
    20,212,883.80x = 225,295,135,401,590.50
  5. Step 5: Solve for x
    x = 225,295,135,401,590.50/20,212,883.80
  6. Step 6: Final answer
    x = 11,146,115.40

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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.