Home / 107,838,413.70-161,757,620.55-77,227,412.10

Finding the Fourth Proportional to 107,838,413.70, 161,757,620.55 and 77,227,412.10

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Solution

The fourth proportional to 107,838,413.70, 161,757,620.55 and 77,227,412.10 is: 115,841,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838,413.70 : 161,757,620.55 = 77,227,412.10 : x
  2. Step 2: Convert to fraction form
    107,838,413.70/161,757,620.55 = 77,227,412.10/x
  3. Step 3: Cross multiply
    107,838,413.70x = 161,757,620.55 × 77,227,412.10
  4. Step 4: Simplify right side
    107,838,413.70x = 12,492,122,422,530,278
  5. Step 5: Solve for x
    x = 12,492,122,422,530,278/107,838,413.70
  6. Step 6: Final answer
    x = 115,841,118.15

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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.