Home / 121,997,881,413.68-182,892,015,131.64-42,399,089,529.68

Finding the Fourth Proportional to 121,997,881,413.68, 182,892,015,131.64 and 42,399,089,529.68

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Solution

The fourth proportional to 121,997,881,413.68, 182,892,015,131.64 and 42,399,089,529.68 is: 63,562,209,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,997,881,413.68 : 182,892,015,131.64 = 42,399,089,529.68 : x
  2. Step 2: Convert to fraction form
    121,997,881,413.68/182,892,015,131.64 = 42,399,089,529.68/x
  3. Step 3: Cross multiply
    121,997,881,413.68x = 182,892,015,131.64 × 42,399,089,529.68
  4. Step 4: Simplify right side
    121,997,881,413.68x = 7,754,454,923,829,994,061,824
  5. Step 5: Solve for x
    x = 7,754,454,923,829,994,061,824/121,997,881,413.68
  6. Step 6: Final answer
    x = 63,562,209,720.15

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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.