Home / 128,465,745.18-192,667,763.54-59,312,105.81

Finding the Fourth Proportional to 128,465,745.18, 192,667,763.54 and 59,312,105.81

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Solution

The fourth proportional to 128,465,745.18, 192,667,763.54 and 59,312,105.81 is: 88,953,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,465,745.18 : 192,667,763.54 = 59,312,105.81 : x
  2. Step 2: Convert to fraction form
    128,465,745.18/192,667,763.54 = 59,312,105.81/x
  3. Step 3: Cross multiply
    128,465,745.18x = 192,667,763.54 × 59,312,105.81
  4. Step 4: Simplify right side
    128,465,745.18x = 11,427,530,776,000,640
  5. Step 5: Solve for x
    x = 11,427,530,776,000,640/128,465,745.18
  6. Step 6: Final answer
    x = 88,953,913.43

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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.