Home / 3,871,119.56-5,342,231.70-2,128,678.50

Finding the Fourth Proportional to 3,871,119.56, 5,342,231.70 and 2,128,678.50

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Solution

The fourth proportional to 3,871,119.56, 5,342,231.70 and 2,128,678.50 is: 2,937,624.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,119.56 : 5,342,231.70 = 2,128,678.50 : x
  2. Step 2: Convert to fraction form
    3,871,119.56/5,342,231.70 = 2,128,678.50/x
  3. Step 3: Cross multiply
    3,871,119.56x = 5,342,231.70 × 2,128,678.50
  4. Step 4: Simplify right side
    3,871,119.56x = 11,371,893,761,808.45
  5. Step 5: Solve for x
    x = 11,371,893,761,808.45/3,871,119.56
  6. Step 6: Final answer
    x = 2,937,624.01

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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.