Home / 112,455,843.40-168,683,765.10-67,068,886.60

Finding the Fourth Proportional to 112,455,843.40, 168,683,765.10 and 67,068,886.60

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Solution

The fourth proportional to 112,455,843.40, 168,683,765.10 and 67,068,886.60 is: 100,603,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,455,843.40 : 168,683,765.10 = 67,068,886.60 : x
  2. Step 2: Convert to fraction form
    112,455,843.40/168,683,765.10 = 67,068,886.60/x
  3. Step 3: Cross multiply
    112,455,843.40x = 168,683,765.10 × 67,068,886.60
  4. Step 4: Simplify right side
    112,455,843.40x = 11,313,432,312,752,938
  5. Step 5: Solve for x
    x = 11,313,432,312,752,938/112,455,843.40
  6. Step 6: Final answer
    x = 100,603,329.90

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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.