Home / 154,886,772.78-213,735,632.22-85,258,553.94

Finding the Fourth Proportional to 154,886,772.78, 213,735,632.22 and 85,258,553.94

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Solution

The fourth proportional to 154,886,772.78, 213,735,632.22 and 85,258,553.94 is: 117,652,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,886,772.78 : 213,735,632.22 = 85,258,553.94 : x
  2. Step 2: Convert to fraction form
    154,886,772.78/213,735,632.22 = 85,258,553.94/x
  3. Step 3: Cross multiply
    154,886,772.78x = 213,735,632.22 × 85,258,553.94
  4. Step 4: Simplify right side
    154,886,772.78x = 18,222,790,928,528,872
  5. Step 5: Solve for x
    x = 18,222,790,928,528,872/154,886,772.78
  6. Step 6: Final answer
    x = 117,652,337.91

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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.