Home / 191,859,619.40-287,789,429.10-133,408,982.60

Finding the Fourth Proportional to 191,859,619.40, 287,789,429.10 and 133,408,982.60

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Solution

The fourth proportional to 191,859,619.40, 287,789,429.10 and 133,408,982.60 is: 200,113,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,859,619.40 : 287,789,429.10 = 133,408,982.60 : x
  2. Step 2: Convert to fraction form
    191,859,619.40/287,789,429.10 = 133,408,982.60/x
  3. Step 3: Cross multiply
    191,859,619.40x = 287,789,429.10 × 133,408,982.60
  4. Step 4: Simplify right side
    191,859,619.40x = 38,393,694,939,265,832
  5. Step 5: Solve for x
    x = 38,393,694,939,265,832/191,859,619.40
  6. Step 6: Final answer
    x = 200,113,473.90

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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.