Home / 289,081,704.07-398,933,261.54-156,922,792.12

Finding the Fourth Proportional to 289,081,704.07, 398,933,261.54 and 156,922,792.12

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Solution

The fourth proportional to 289,081,704.07, 398,933,261.54 and 156,922,792.12 is: 216,553,729.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,081,704.07 : 398,933,261.54 = 156,922,792.12 : x
  2. Step 2: Convert to fraction form
    289,081,704.07/398,933,261.54 = 156,922,792.12/x
  3. Step 3: Cross multiply
    289,081,704.07x = 398,933,261.54 × 156,922,792.12
  4. Step 4: Simplify right side
    289,081,704.07x = 62,601,721,270,395,016
  5. Step 5: Solve for x
    x = 62,601,721,270,395,016/289,081,704.07
  6. Step 6: Final answer
    x = 216,553,729.93

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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.