Home / 258,863,612.75-388,349,952.90-83,972,990.83

Finding the Fourth Proportional to 258,863,612.75, 388,349,952.90 and 83,972,990.83

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Solution

The fourth proportional to 258,863,612.75, 388,349,952.90 and 83,972,990.83 is: 125,977,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,863,612.75 : 388,349,952.90 = 83,972,990.83 : x
  2. Step 2: Convert to fraction form
    258,863,612.75/388,349,952.90 = 83,972,990.83/x
  3. Step 3: Cross multiply
    258,863,612.75x = 388,349,952.90 × 83,972,990.83
  4. Step 4: Simplify right side
    258,863,612.75x = 32,610,907,032,521,824
  5. Step 5: Solve for x
    x = 32,610,907,032,521,824/258,863,612.75
  6. Step 6: Final answer
    x = 125,977,176.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.