Home / 143,767,533.20-215,431,859.64-85,360,195.40

Finding the Fourth Proportional to 143,767,533.20, 215,431,859.64 and 85,360,195.40

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Solution

The fourth proportional to 143,767,533.20, 215,431,859.64 and 85,360,195.40 is: 127,910,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,767,533.20 : 215,431,859.64 = 85,360,195.40 : x
  2. Step 2: Convert to fraction form
    143,767,533.20/215,431,859.64 = 85,360,195.40/x
  3. Step 3: Cross multiply
    143,767,533.20x = 215,431,859.64 × 85,360,195.40
  4. Step 4: Simplify right side
    143,767,533.20x = 18,389,305,634,255,772
  5. Step 5: Solve for x
    x = 18,389,305,634,255,772/143,767,533.20
  6. Step 6: Final answer
    x = 127,910,003.22

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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.