Home / 39,321,560.62-54,265,590.93-21,918,031.84

Finding the Fourth Proportional to 39,321,560.62, 54,265,590.93 and 21,918,031.84

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Solution

The fourth proportional to 39,321,560.62, 54,265,590.93 and 21,918,031.84 is: 30,247,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321,560.62 : 54,265,590.93 = 21,918,031.84 : x
  2. Step 2: Convert to fraction form
    39,321,560.62/54,265,590.93 = 21,918,031.84/x
  3. Step 3: Cross multiply
    39,321,560.62x = 54,265,590.93 × 21,918,031.84
  4. Step 4: Simplify right side
    39,321,560.62x = 1,189,394,949,820,155.25
  5. Step 5: Solve for x
    x = 1,189,394,949,820,155.25/39,321,560.62
  6. Step 6: Final answer
    x = 30,247,908.05

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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.