Finding the Fourth Proportional to 1,063,015,571.80, 1,594,523,357.70 and 489,706,643.80
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Solution
The fourth proportional to 1,063,015,571.80, 1,594,523,357.70 and 489,706,643.80 is: 734,559,965.70
Step by Step Solution
- Step 1: Write the proportion equation
1,063,015,571.80 : 1,594,523,357.70 = 489,706,643.80 : x - Step 2: Convert to fraction form
1,063,015,571.80/1,594,523,357.70 = 489,706,643.80/x - Step 3: Cross multiply
1,063,015,571.80x = 1,594,523,357.70 × 489,706,643.80 - Step 4: Simplify right side
1,063,015,571.80x = 780,848,681,959,973,888 - Step 5: Solve for x
x = 780,848,681,959,973,888/1,063,015,571.80 - Step 6: Final answer
x = 734,559,965.70
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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.