Home / 57,095,289.45-78,789,389.60-30,989,246.78

Finding the Fourth Proportional to 57,095,289.45, 78,789,389.60 and 30,989,246.78

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Solution

The fourth proportional to 57,095,289.45, 78,789,389.60 and 30,989,246.78 is: 42,764,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,095,289.45 : 78,789,389.60 = 30,989,246.78 : x
  2. Step 2: Convert to fraction form
    57,095,289.45/78,789,389.60 = 30,989,246.78/x
  3. Step 3: Cross multiply
    57,095,289.45x = 78,789,389.60 × 30,989,246.78
  4. Step 4: Simplify right side
    57,095,289.45x = 2,441,623,837,616,907
  5. Step 5: Solve for x
    x = 2,441,623,837,616,907/57,095,289.45
  6. Step 6: Final answer
    x = 42,764,015.41

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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.