Home / 20,847,927.89-31,275,820.64-7,897,957.31

Finding the Fourth Proportional to 20,847,927.89, 31,275,820.64 and 7,897,957.31

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Solution

The fourth proportional to 20,847,927.89, 31,275,820.64 and 7,897,957.31 is: 11,848,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847,927.89 : 31,275,820.64 = 7,897,957.31 : x
  2. Step 2: Convert to fraction form
    20,847,927.89/31,275,820.64 = 7,897,957.31/x
  3. Step 3: Cross multiply
    20,847,927.89x = 31,275,820.64 × 7,897,957.31
  4. Step 4: Simplify right side
    20,847,927.89x = 247,015,096,347,871.31
  5. Step 5: Solve for x
    x = 247,015,096,347,871.31/20,847,927.89
  6. Step 6: Final answer
    x = 11,848,424.34

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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.