Home / 118,311,621.69-163,270,107.10-66,100,657.29

Finding the Fourth Proportional to 118,311,621.69, 163,270,107.10 and 66,100,657.29

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Solution

The fourth proportional to 118,311,621.69, 163,270,107.10 and 66,100,657.29 is: 91,218,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,311,621.69 : 163,270,107.10 = 66,100,657.29 : x
  2. Step 2: Convert to fraction form
    118,311,621.69/163,270,107.10 = 66,100,657.29/x
  3. Step 3: Cross multiply
    118,311,621.69x = 163,270,107.10 × 66,100,657.29
  4. Step 4: Simplify right side
    118,311,621.69x = 10,792,261,395,118,696
  5. Step 5: Solve for x
    x = 10,792,261,395,118,696/118,311,621.69
  6. Step 6: Final answer
    x = 91,218,945.70

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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.