Home / 128,276,342.55-192,414,513.83-112,133,822.18

Finding the Fourth Proportional to 128,276,342.55, 192,414,513.83 and 112,133,822.18

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Solution

The fourth proportional to 128,276,342.55, 192,414,513.83 and 112,133,822.18 is: 168,200,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,276,342.55 : 192,414,513.83 = 112,133,822.18 : x
  2. Step 2: Convert to fraction form
    128,276,342.55/192,414,513.83 = 112,133,822.18/x
  3. Step 3: Cross multiply
    128,276,342.55x = 192,414,513.83 × 112,133,822.18
  4. Step 4: Simplify right side
    128,276,342.55x = 21,576,174,877,141,628
  5. Step 5: Solve for x
    x = 21,576,174,877,141,628/128,276,342.55
  6. Step 6: Final answer
    x = 168,200,733.26

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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.