Home / 65,373,106.80-90,208,211.31-40,251,226.80

Finding the Fourth Proportional to 65,373,106.80, 90,208,211.31 and 40,251,226.80

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Solution

The fourth proportional to 65,373,106.80, 90,208,211.31 and 40,251,226.80 is: 55,542,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373,106.80 : 90,208,211.31 = 40,251,226.80 : x
  2. Step 2: Convert to fraction form
    65,373,106.80/90,208,211.31 = 40,251,226.80/x
  3. Step 3: Cross multiply
    65,373,106.80x = 90,208,211.31 × 40,251,226.80
  4. Step 4: Simplify right side
    65,373,106.80x = 3,630,991,172,661,135
  5. Step 5: Solve for x
    x = 3,630,991,172,661,135/65,373,106.80
  6. Step 6: Final answer
    x = 55,542,582.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.