Home / 286,282,521.36-394,945,128.48-180,371,644.68

Finding the Fourth Proportional to 286,282,521.36, 394,945,128.48 and 180,371,644.68

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Solution

The fourth proportional to 286,282,521.36, 394,945,128.48 and 180,371,644.68 is: 248,834,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,282,521.36 : 394,945,128.48 = 180,371,644.68 : x
  2. Step 2: Convert to fraction form
    286,282,521.36/394,945,128.48 = 180,371,644.68/x
  3. Step 3: Cross multiply
    286,282,521.36x = 394,945,128.48 × 180,371,644.68
  4. Step 4: Simplify right side
    286,282,521.36x = 71,236,902,382,291,512
  5. Step 5: Solve for x
    x = 71,236,902,382,291,512/286,282,521.36
  6. Step 6: Final answer
    x = 248,834,270.58

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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.