Finding the Fourth Proportional to 5,361,851,679, 7,399,423,413.68 and 2,950,811,768.56
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Solution
The fourth proportional to 5,361,851,679, 7,399,423,413.68 and 2,950,811,768.56 is: 4,072,157,716.55
Step by Step Solution
- Step 1: Write the proportion equation
5,361,851,679 : 7,399,423,413.68 = 2,950,811,768.56 : x - Step 2: Convert to fraction form
5,361,851,679/7,399,423,413.68 = 2,950,811,768.56/x - Step 3: Cross multiply
5,361,851,679x = 7,399,423,413.68 × 2,950,811,768.56 - Step 4: Simplify right side
5,361,851,679x = 21,834,305,689,645,355,008 - Step 5: Solve for x
x = 21,834,305,689,645,355,008/5,361,851,679 - Step 6: Final answer
x = 4,072,157,716.55
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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.