Home / 64,936,919.12-89,621,864.16-39,814,585.64

Finding the Fourth Proportional to 64,936,919.12, 89,621,864.16 and 39,814,585.64

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Solution

The fourth proportional to 64,936,919.12, 89,621,864.16 and 39,814,585.64 is: 54,949,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,936,919.12 : 89,621,864.16 = 39,814,585.64 : x
  2. Step 2: Convert to fraction form
    64,936,919.12/89,621,864.16 = 39,814,585.64/x
  3. Step 3: Cross multiply
    64,936,919.12x = 89,621,864.16 × 39,814,585.64
  4. Step 4: Simplify right side
    64,936,919.12x = 3,568,257,385,814,766.50
  5. Step 5: Solve for x
    x = 3,568,257,385,814,766.50/64,936,919.12
  6. Step 6: Final answer
    x = 54,949,594.69

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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.