Home / 142,729,221.40-214,093,832.10-135,359,906.20

Finding the Fourth Proportional to 142,729,221.40, 214,093,832.10 and 135,359,906.20

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Solution

The fourth proportional to 142,729,221.40, 214,093,832.10 and 135,359,906.20 is: 203,039,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,729,221.40 : 214,093,832.10 = 135,359,906.20 : x
  2. Step 2: Convert to fraction form
    142,729,221.40/214,093,832.10 = 135,359,906.20/x
  3. Step 3: Cross multiply
    142,729,221.40x = 214,093,832.10 × 135,359,906.20
  4. Step 4: Simplify right side
    142,729,221.40x = 28,979,721,031,054,544
  5. Step 5: Solve for x
    x = 28,979,721,031,054,544/142,729,221.40
  6. Step 6: Final answer
    x = 203,039,859.30

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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.