Home / 18,902,421.60-28,374,627.60-11,722,063.20

Finding the Fourth Proportional to 18,902,421.60, 28,374,627.60 and 11,722,063.20

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Solution

The fourth proportional to 18,902,421.60, 28,374,627.60 and 11,722,063.20 is: 17,596,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902,421.60 : 28,374,627.60 = 11,722,063.20 : x
  2. Step 2: Convert to fraction form
    18,902,421.60/28,374,627.60 = 11,722,063.20/x
  3. Step 3: Cross multiply
    18,902,421.60x = 28,374,627.60 × 11,722,063.20
  4. Step 4: Simplify right side
    18,902,421.60x = 332,609,178,003,664.31
  5. Step 5: Solve for x
    x = 332,609,178,003,664.31/18,902,421.60
  6. Step 6: Final answer
    x = 17,596,114.67

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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.