Home / 128,736,015.70-193,104,023.55-122,764,047.70

Finding the Fourth Proportional to 128,736,015.70, 193,104,023.55 and 122,764,047.70

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Solution

The fourth proportional to 128,736,015.70, 193,104,023.55 and 122,764,047.70 is: 184,146,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,015.70 : 193,104,023.55 = 122,764,047.70 : x
  2. Step 2: Convert to fraction form
    128,736,015.70/193,104,023.55 = 122,764,047.70/x
  3. Step 3: Cross multiply
    128,736,015.70x = 193,104,023.55 × 122,764,047.70
  4. Step 4: Simplify right side
    128,736,015.70x = 23,706,231,558,154,124
  5. Step 5: Solve for x
    x = 23,706,231,558,154,124/128,736,015.70
  6. Step 6: Final answer
    x = 184,146,071.55

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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.