Home / 128,404,186.82-192,492,904.92-98,246,681.54

Finding the Fourth Proportional to 128,404,186.82, 192,492,904.92 and 98,246,681.54

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Solution

The fourth proportional to 128,404,186.82, 192,492,904.92 and 98,246,681.54 is: 147,283,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,404,186.82 : 192,492,904.92 = 98,246,681.54 : x
  2. Step 2: Convert to fraction form
    128,404,186.82/192,492,904.92 = 98,246,681.54/x
  3. Step 3: Cross multiply
    128,404,186.82x = 192,492,904.92 × 98,246,681.54
  4. Step 4: Simplify right side
    128,404,186.82x = 18,911,789,128,384,740
  5. Step 5: Solve for x
    x = 18,911,789,128,384,740/128,404,186.82
  6. Step 6: Final answer
    x = 147,283,274.76

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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.