Home / 21,160,638.78-31,740,674.41-5,807,910.31

Finding the Fourth Proportional to 21,160,638.78, 31,740,674.41 and 5,807,910.31

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Solution

The fourth proportional to 21,160,638.78, 31,740,674.41 and 5,807,910.31 is: 8,711,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,638.78 : 31,740,674.41 = 5,807,910.31 : x
  2. Step 2: Convert to fraction form
    21,160,638.78/31,740,674.41 = 5,807,910.31/x
  3. Step 3: Cross multiply
    21,160,638.78x = 31,740,674.41 × 5,807,910.31
  4. Step 4: Simplify right side
    21,160,638.78x = 184,346,990,112,478.88
  5. Step 5: Solve for x
    x = 184,346,990,112,478.88/21,160,638.78
  6. Step 6: Final answer
    x = 8,711,787.58

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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.