Home / 71,913,563.85-107,947,109.40-30,993,197.34

Finding the Fourth Proportional to 71,913,563.85, 107,947,109.40 and 30,993,197.34

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Solution

The fourth proportional to 71,913,563.85, 107,947,109.40 and 30,993,197.34 is: 46,522,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,913,563.85 : 107,947,109.40 = 30,993,197.34 : x
  2. Step 2: Convert to fraction form
    71,913,563.85/107,947,109.40 = 30,993,197.34/x
  3. Step 3: Cross multiply
    71,913,563.85x = 107,947,109.40 × 30,993,197.34
  4. Step 4: Simplify right side
    71,913,563.85x = 3,345,626,063,916,769
  5. Step 5: Solve for x
    x = 3,345,626,063,916,769/71,913,563.85
  6. Step 6: Final answer
    x = 46,522,879.48

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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.