Home / 138,813,554.94-191,451,008.21-122,032,413.96

Finding the Fourth Proportional to 138,813,554.94, 191,451,008.21 and 122,032,413.96

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Solution

The fourth proportional to 138,813,554.94, 191,451,008.21 and 122,032,413.96 is: 168,306,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,813,554.94 : 191,451,008.21 = 122,032,413.96 : x
  2. Step 2: Convert to fraction form
    138,813,554.94/191,451,008.21 = 122,032,413.96/x
  3. Step 3: Cross multiply
    138,813,554.94x = 191,451,008.21 × 122,032,413.96
  4. Step 4: Simplify right side
    138,813,554.94x = 23,363,228,686,331,916
  5. Step 5: Solve for x
    x = 23,363,228,686,331,916/138,813,554.94
  6. Step 6: Final answer
    x = 168,306,536.75

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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.