Home / 156,195,507.36-215,545,133.39-85,628,704.67

Finding the Fourth Proportional to 156,195,507.36, 215,545,133.39 and 85,628,704.67

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Solution

The fourth proportional to 156,195,507.36, 215,545,133.39 and 85,628,704.67 is: 118,165,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,195,507.36 : 215,545,133.39 = 85,628,704.67 : x
  2. Step 2: Convert to fraction form
    156,195,507.36/215,545,133.39 = 85,628,704.67/x
  3. Step 3: Cross multiply
    156,195,507.36x = 215,545,133.39 × 85,628,704.67
  4. Step 4: Simplify right side
    156,195,507.36x = 18,456,850,569,410,492
  5. Step 5: Solve for x
    x = 18,456,850,569,410,492/156,195,507.36
  6. Step 6: Final answer
    x = 118,165,054.05

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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.