Home / 21,390,556.34-29,522,740.98-12,693,524.38

Finding the Fourth Proportional to 21,390,556.34, 29,522,740.98 and 12,693,524.38

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Solution

The fourth proportional to 21,390,556.34, 29,522,740.98 and 12,693,524.38 is: 17,519,302.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,556.34 : 29,522,740.98 = 12,693,524.38 : x
  2. Step 2: Convert to fraction form
    21,390,556.34/29,522,740.98 = 12,693,524.38/x
  3. Step 3: Cross multiply
    21,390,556.34x = 29,522,740.98 × 12,693,524.38
  4. Step 4: Simplify right side
    21,390,556.34x = 374,747,632,367,848.94
  5. Step 5: Solve for x
    x = 374,747,632,367,848.94/21,390,556.34
  6. Step 6: Final answer
    x = 17,519,302.74

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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.