Home / 20,916,647.90-31,376,779.98-5,770,579.40

Finding the Fourth Proportional to 20,916,647.90, 31,376,779.98 and 5,770,579.40

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Solution

The fourth proportional to 20,916,647.90, 31,376,779.98 and 5,770,579.40 is: 8,656,367.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,647.90 : 31,376,779.98 = 5,770,579.40 : x
  2. Step 2: Convert to fraction form
    20,916,647.90/31,376,779.98 = 5,770,579.40/x
  3. Step 3: Cross multiply
    20,916,647.90x = 31,376,779.98 × 5,770,579.40
  4. Step 4: Simplify right side
    20,916,647.90x = 181,062,200,190,920.44
  5. Step 5: Solve for x
    x = 181,062,200,190,920.44/20,916,647.90
  6. Step 6: Final answer
    x = 8,656,367.94

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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.