Home / 28,378,729,025.45-39,144,193,101.36-18,201,336,548.63

Finding the Fourth Proportional to 28,378,729,025.45, 39,144,193,101.36 and 18,201,336,548.63

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Solution

The fourth proportional to 28,378,729,025.45, 39,144,193,101.36 and 18,201,336,548.63 is: 25,106,009,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,729,025.45 : 39,144,193,101.36 = 18,201,336,548.63 : x
  2. Step 2: Convert to fraction form
    28,378,729,025.45/39,144,193,101.36 = 18,201,336,548.63/x
  3. Step 3: Cross multiply
    28,378,729,025.45x = 39,144,193,101.36 × 18,201,336,548.63
  4. Step 4: Simplify right side
    28,378,729,025.45x = 712,476,632,562,414,125,056
  5. Step 5: Solve for x
    x = 712,476,632,562,414,125,056/28,378,729,025.45
  6. Step 6: Final answer
    x = 25,106,009,219.91

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1.5x scale

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.