Home / 289,081,709.32-398,933,268.78-156,922,797.37

Finding the Fourth Proportional to 289,081,709.32, 398,933,268.78 and 156,922,797.37

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Solution

The fourth proportional to 289,081,709.32, 398,933,268.78 and 156,922,797.37 is: 216,553,737.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,081,709.32 : 398,933,268.78 = 156,922,797.37 : x
  2. Step 2: Convert to fraction form
    289,081,709.32/398,933,268.78 = 156,922,797.37/x
  3. Step 3: Cross multiply
    289,081,709.32x = 398,933,268.78 × 156,922,797.37
  4. Step 4: Simplify right side
    289,081,709.32x = 62,601,724,500,915,688
  5. Step 5: Solve for x
    x = 62,601,724,500,915,688/289,081,709.32
  6. Step 6: Final answer
    x = 216,553,737.17

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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.