Home / 64,936,917.12-89,621,861.40-39,814,583.63

Finding the Fourth Proportional to 64,936,917.12, 89,621,861.40 and 39,814,583.63

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Solution

The fourth proportional to 64,936,917.12, 89,621,861.40 and 39,814,583.63 is: 54,949,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,936,917.12 : 89,621,861.40 = 39,814,583.63 : x
  2. Step 2: Convert to fraction form
    64,936,917.12/89,621,861.40 = 39,814,583.63/x
  3. Step 3: Cross multiply
    64,936,917.12x = 89,621,861.40 × 39,814,583.63
  4. Step 4: Simplify right side
    64,936,917.12x = 3,568,257,095,786,569.50
  5. Step 5: Solve for x
    x = 3,568,257,095,786,569.50/64,936,917.12
  6. Step 6: Final answer
    x = 54,949,591.91

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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.