Home / 128,662,794.61-177,556,027.79-69,925,462.76

Finding the Fourth Proportional to 128,662,794.61, 177,556,027.79 and 69,925,462.76

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Solution

The fourth proportional to 128,662,794.61, 177,556,027.79 and 69,925,462.76 is: 96,497,883.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,662,794.61 : 177,556,027.79 = 69,925,462.76 : x
  2. Step 2: Convert to fraction form
    128,662,794.61/177,556,027.79 = 69,925,462.76/x
  3. Step 3: Cross multiply
    128,662,794.61x = 177,556,027.79 × 69,925,462.76
  4. Step 4: Simplify right side
    128,662,794.61x = 12,415,687,409,043,170
  5. Step 5: Solve for x
    x = 12,415,687,409,043,170/128,662,794.61
  6. Step 6: Final answer
    x = 96,497,883.84

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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.