Finding the Fourth Proportional to 5,717,868,933.19, 7,890,850,731.29 and 3,177,657,947.55
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Solution
The fourth proportional to 5,717,868,933.19, 7,890,850,731.29 and 3,177,657,947.55 is: 4,385,274,449.66
Step by Step Solution
- Step 1: Write the proportion equation
5,717,868,933.19 : 7,890,850,731.29 = 3,177,657,947.55 : x - Step 2: Convert to fraction form
5,717,868,933.19/7,890,850,731.29 = 3,177,657,947.55/x - Step 3: Cross multiply
5,717,868,933.19x = 7,890,850,731.29 × 3,177,657,947.55 - Step 4: Simplify right side
5,717,868,933.19x = 25,074,424,539,198,509,056 - Step 5: Solve for x
x = 25,074,424,539,198,509,056/5,717,868,933.19 - Step 6: Final answer
x = 4,385,274,449.66
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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.