Home / 65,766,989.80-90,757,777.20-36,398,379.16

Finding the Fourth Proportional to 65,766,989.80, 90,757,777.20 and 36,398,379.16

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Solution

The fourth proportional to 65,766,989.80, 90,757,777.20 and 36,398,379.16 is: 50,229,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,766,989.80 : 90,757,777.20 = 36,398,379.16 : x
  2. Step 2: Convert to fraction form
    65,766,989.80/90,757,777.20 = 36,398,379.16/x
  3. Step 3: Cross multiply
    65,766,989.80x = 90,757,777.20 × 36,398,379.16
  4. Step 4: Simplify right side
    65,766,989.80x = 3,303,435,986,244,403
  5. Step 5: Solve for x
    x = 3,303,435,986,244,403/65,766,989.80
  6. Step 6: Final answer
    x = 50,229,393.14

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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.