Home / 20,602,062.90-30,902,779.80-6,964,788.78

Finding the Fourth Proportional to 20,602,062.90, 30,902,779.80 and 6,964,788.78

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Solution

The fourth proportional to 20,602,062.90, 30,902,779.80 and 6,964,788.78 is: 10,447,076.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602,062.90 : 30,902,779.80 = 6,964,788.78 : x
  2. Step 2: Convert to fraction form
    20,602,062.90/30,902,779.80 = 6,964,788.78/x
  3. Step 3: Cross multiply
    20,602,062.90x = 30,902,779.80 × 6,964,788.78
  4. Step 4: Simplify right side
    20,602,062.90x = 215,231,334,021,850.66
  5. Step 5: Solve for x
    x = 215,231,334,021,850.66/20,602,062.90
  6. Step 6: Final answer
    x = 10,447,076.83

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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.