Home / 120,295,141.15-166,002,854.30-65,289,816.67

Finding the Fourth Proportional to 120,295,141.15, 166,002,854.30 and 65,289,816.67

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Solution

The fourth proportional to 120,295,141.15, 166,002,854.30 and 65,289,816.67 is: 90,097,536.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,295,141.15 : 166,002,854.30 = 65,289,816.67 : x
  2. Step 2: Convert to fraction form
    120,295,141.15/166,002,854.30 = 65,289,816.67/x
  3. Step 3: Cross multiply
    120,295,141.15x = 166,002,854.30 × 65,289,816.67
  4. Step 4: Simplify right side
    120,295,141.15x = 10,838,295,923,447,102
  5. Step 5: Solve for x
    x = 10,838,295,923,447,102/120,295,141.15
  6. Step 6: Final answer
    x = 90,097,536.94

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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.