Home / 128,111,958.32-192,128,193.23-46,220,190.98

Finding the Fourth Proportional to 128,111,958.32, 192,128,193.23 and 46,220,190.98

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Solution

The fourth proportional to 128,111,958.32, 192,128,193.23 and 46,220,190.98 is: 69,315,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,111,958.32 : 192,128,193.23 = 46,220,190.98 : x
  2. Step 2: Convert to fraction form
    128,111,958.32/192,128,193.23 = 46,220,190.98/x
  3. Step 3: Cross multiply
    128,111,958.32x = 192,128,193.23 × 46,220,190.98
  4. Step 4: Simplify right side
    128,111,958.32x = 8,880,201,782,541,201
  5. Step 5: Solve for x
    x = 8,880,201,782,541,201/128,111,958.32
  6. Step 6: Final answer
    x = 69,315,947.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.