Home / 3,618,845.76-4,994,011.60-1,987,358.32

Finding the Fourth Proportional to 3,618,845.76, 4,994,011.60 and 1,987,358.32

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Solution

The fourth proportional to 3,618,845.76, 4,994,011.60 and 1,987,358.32 is: 2,742,556.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618,845.76 : 4,994,011.60 = 1,987,358.32 : x
  2. Step 2: Convert to fraction form
    3,618,845.76/4,994,011.60 = 1,987,358.32/x
  3. Step 3: Cross multiply
    3,618,845.76x = 4,994,011.60 × 1,987,358.32
  4. Step 4: Simplify right side
    3,618,845.76x = 9,924,890,503,436.51
  5. Step 5: Solve for x
    x = 9,924,890,503,436.51/3,618,845.76
  6. Step 6: Final answer
    x = 2,742,556.93

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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.