Home / 3,776,128.40-5,211,041.60-2,057,243.60

Finding the Fourth Proportional to 3,776,128.40, 5,211,041.60 and 2,057,243.60

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Solution

The fourth proportional to 3,776,128.40, 5,211,041.60 and 2,057,243.60 is: 2,838,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776,128.40 : 5,211,041.60 = 2,057,243.60 : x
  2. Step 2: Convert to fraction form
    3,776,128.40/5,211,041.60 = 2,057,243.60/x
  3. Step 3: Cross multiply
    3,776,128.40x = 5,211,041.60 × 2,057,243.60
  4. Step 4: Simplify right side
    3,776,128.40x = 10,720,381,980,933.76
  5. Step 5: Solve for x
    x = 10,720,381,980,933.76/3,776,128.40
  6. Step 6: Final answer
    x = 2,838,987.67

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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.