Home / 312,714,485.30-431,366,696.16-195,035,510.85

Finding the Fourth Proportional to 312,714,485.30, 431,366,696.16 and 195,035,510.85

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Solution

The fourth proportional to 312,714,485.30, 431,366,696.16 and 195,035,510.85 is: 269,037,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,714,485.30 : 431,366,696.16 = 195,035,510.85 : x
  2. Step 2: Convert to fraction form
    312,714,485.30/431,366,696.16 = 195,035,510.85/x
  3. Step 3: Cross multiply
    312,714,485.30x = 431,366,696.16 × 195,035,510.85
  4. Step 4: Simplify right side
    312,714,485.30x = 84,131,823,949,242,336
  5. Step 5: Solve for x
    x = 84,131,823,949,242,336/312,714,485.30
  6. Step 6: Final answer
    x = 269,037,182.18

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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.