Home / 128,736,031.20-193,104,046.80-122,764,063.20

Finding the Fourth Proportional to 128,736,031.20, 193,104,046.80 and 122,764,063.20

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Solution

The fourth proportional to 128,736,031.20, 193,104,046.80 and 122,764,063.20 is: 184,146,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,031.20 : 193,104,046.80 = 122,764,063.20 : x
  2. Step 2: Convert to fraction form
    128,736,031.20/193,104,046.80 = 122,764,063.20/x
  3. Step 3: Cross multiply
    128,736,031.20x = 193,104,046.80 × 122,764,063.20
  4. Step 4: Simplify right side
    128,736,031.20x = 23,706,237,405,530,960
  5. Step 5: Solve for x
    x = 23,706,237,405,530,960/128,736,031.20
  6. Step 6: Final answer
    x = 184,146,094.80

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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.