Home / 128,947,974.70-193,421,962.05-117,043,696.30

Finding the Fourth Proportional to 128,947,974.70, 193,421,962.05 and 117,043,696.30

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Solution

The fourth proportional to 128,947,974.70, 193,421,962.05 and 117,043,696.30 is: 175,565,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,947,974.70 : 193,421,962.05 = 117,043,696.30 : x
  2. Step 2: Convert to fraction form
    128,947,974.70/193,421,962.05 = 117,043,696.30/x
  3. Step 3: Cross multiply
    128,947,974.70x = 193,421,962.05 × 117,043,696.30
  4. Step 4: Simplify right side
    128,947,974.70x = 22,638,821,383,930,328
  5. Step 5: Solve for x
    x = 22,638,821,383,930,328/128,947,974.70
  6. Step 6: Final answer
    x = 175,565,544.45

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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.