Home / 289,081,112.02-398,932,440.73-156,922,198.09

Finding the Fourth Proportional to 289,081,112.02, 398,932,440.73 and 156,922,198.09

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Solution

The fourth proportional to 289,081,112.02, 398,932,440.73 and 156,922,198.09 is: 216,552,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,081,112.02 : 398,932,440.73 = 156,922,198.09 : x
  2. Step 2: Convert to fraction form
    289,081,112.02/398,932,440.73 = 156,922,198.09/x
  3. Step 3: Cross multiply
    289,081,112.02x = 398,932,440.73 × 156,922,198.09
  4. Step 4: Simplify right side
    289,081,112.02x = 62,601,355,487,370,616
  5. Step 5: Solve for x
    x = 62,601,355,487,370,616/289,081,112.02
  6. Step 6: Final answer
    x = 216,552,908.11

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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.