Home / 128,047,032.81-192,101,105.25-41,785,600.05

Finding the Fourth Proportional to 128,047,032.81, 192,101,105.25 and 41,785,600.05

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Solution

The fourth proportional to 128,047,032.81, 192,101,105.25 and 41,785,600.05 is: 62,688,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,047,032.81 : 192,101,105.25 = 41,785,600.05 : x
  2. Step 2: Convert to fraction form
    128,047,032.81/192,101,105.25 = 41,785,600.05/x
  3. Step 3: Cross multiply
    128,047,032.81x = 192,101,105.25 × 41,785,600.05
  4. Step 4: Simplify right side
    128,047,032.81x = 8,027,059,953,139,455
  5. Step 5: Solve for x
    x = 8,027,059,953,139,455/128,047,032.81
  6. Step 6: Final answer
    x = 62,688,371.43

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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.