Home / 21,778,396.56-30,064,390.92-12,609,267.84

Finding the Fourth Proportional to 21,778,396.56, 30,064,390.92 and 12,609,267.84

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Solution

The fourth proportional to 21,778,396.56, 30,064,390.92 and 12,609,267.84 is: 17,406,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,396.56 : 30,064,390.92 = 12,609,267.84 : x
  2. Step 2: Convert to fraction form
    21,778,396.56/30,064,390.92 = 12,609,267.84/x
  3. Step 3: Cross multiply
    21,778,396.56x = 30,064,390.92 × 12,609,267.84
  4. Step 4: Simplify right side
    21,778,396.56x = 379,089,957,556,744
  5. Step 5: Solve for x
    x = 379,089,957,556,744/21,778,396.56
  6. Step 6: Final answer
    x = 17,406,697.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.