Home / 135,588,965.49-186,937,145.46-87,819,228.45

Finding the Fourth Proportional to 135,588,965.49, 186,937,145.46 and 87,819,228.45

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Solution

The fourth proportional to 135,588,965.49, 186,937,145.46 and 87,819,228.45 is: 121,076,783.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,588,965.49 : 186,937,145.46 = 87,819,228.45 : x
  2. Step 2: Convert to fraction form
    135,588,965.49/186,937,145.46 = 87,819,228.45/x
  3. Step 3: Cross multiply
    135,588,965.49x = 186,937,145.46 × 87,819,228.45
  4. Step 4: Simplify right side
    135,588,965.49x = 16,416,675,882,942,622
  5. Step 5: Solve for x
    x = 16,416,675,882,942,622/135,588,965.49
  6. Step 6: Final answer
    x = 121,076,783.97

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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.