Home / 51,373,507.44-70,905,739.74-30,477,138.90

Finding the Fourth Proportional to 51,373,507.44, 70,905,739.74 and 30,477,138.90

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Solution

The fourth proportional to 51,373,507.44, 70,905,739.74 and 30,477,138.90 is: 42,064,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,373,507.44 : 70,905,739.74 = 30,477,138.90 : x
  2. Step 2: Convert to fraction form
    51,373,507.44/70,905,739.74 = 30,477,138.90/x
  3. Step 3: Cross multiply
    51,373,507.44x = 70,905,739.74 × 30,477,138.90
  4. Step 4: Simplify right side
    51,373,507.44x = 2,161,004,078,863,229.50
  5. Step 5: Solve for x
    x = 2,161,004,078,863,229.50/51,373,507.44
  6. Step 6: Final answer
    x = 42,064,561.81

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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.