Home / 289,081,196.49-398,932,556.87-156,922,282.55

Finding the Fourth Proportional to 289,081,196.49, 398,932,556.87 and 156,922,282.55

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Solution

The fourth proportional to 289,081,196.49, 398,932,556.87 and 156,922,282.55 is: 216,553,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,081,196.49 : 398,932,556.87 = 156,922,282.55 : x
  2. Step 2: Convert to fraction form
    289,081,196.49/398,932,556.87 = 156,922,282.55/x
  3. Step 3: Cross multiply
    289,081,196.49x = 398,932,556.87 × 156,922,282.55
  4. Step 4: Simplify right side
    289,081,196.49x = 62,601,407,404,768,808
  5. Step 5: Solve for x
    x = 62,601,407,404,768,808/289,081,196.49
  6. Step 6: Final answer
    x = 216,553,024.43

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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.