Finding the Fourth Proportional to 5,729,364,531.32, 7,906,523,417.80 and 3,188,991,811.40
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Solution
The fourth proportional to 5,729,364,531.32, 7,906,523,417.80 and 3,188,991,811.40 is: 4,400,808,902.65
Step by Step Solution
- Step 1: Write the proportion equation
5,729,364,531.32 : 7,906,523,417.80 = 3,188,991,811.40 : x - Step 2: Convert to fraction form
5,729,364,531.32/7,906,523,417.80 = 3,188,991,811.40/x - Step 3: Cross multiply
5,729,364,531.32x = 7,906,523,417.80 × 3,188,991,811.40 - Step 4: Simplify right side
5,729,364,531.32x = 25,213,838,436,003,094,528 - Step 5: Solve for x
x = 25,213,838,436,003,094,528/5,729,364,531.32 - Step 6: Final answer
x = 4,400,808,902.65
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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.