Home / 20,212,902.30-30,319,353.45-7,430,762.10

Finding the Fourth Proportional to 20,212,902.30, 30,319,353.45 and 7,430,762.10

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Solution

The fourth proportional to 20,212,902.30, 30,319,353.45 and 7,430,762.10 is: 11,146,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,902.30 : 30,319,353.45 = 7,430,762.10 : x
  2. Step 2: Convert to fraction form
    20,212,902.30/30,319,353.45 = 7,430,762.10/x
  3. Step 3: Cross multiply
    20,212,902.30x = 30,319,353.45 × 7,430,762.10
  4. Step 4: Simplify right side
    20,212,902.30x = 225,295,902,512,764.22
  5. Step 5: Solve for x
    x = 225,295,902,512,764.22/20,212,902.30
  6. Step 6: Final answer
    x = 11,146,143.15

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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.