Home / 28,089,747-38,763,850.86-15,212,691

Finding the Fourth Proportional to 28,089,747, 38,763,850.86 and 15,212,691

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Solution

The fourth proportional to 28,089,747, 38,763,850.86 and 15,212,691 is: 20,993,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089,747 : 38,763,850.86 = 15,212,691 : x
  2. Step 2: Convert to fraction form
    28,089,747/38,763,850.86 = 15,212,691/x
  3. Step 3: Cross multiply
    28,089,747x = 38,763,850.86 × 15,212,691
  4. Step 4: Simplify right side
    28,089,747x = 589,702,485,103,264.25
  5. Step 5: Solve for x
    x = 589,702,485,103,264.25/28,089,747
  6. Step 6: Final answer
    x = 20,993,513.58

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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.