Finding the Fourth Proportional to 7,621,517,192.68, 11,428,350,432.84 and 3,420,868,897.36
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Solution
The fourth proportional to 7,621,517,192.68, 11,428,350,432.84 and 3,420,868,897.36 is: 5,129,541,475.20
Step by Step Solution
- Step 1: Write the proportion equation
7,621,517,192.68 : 11,428,350,432.84 = 3,420,868,897.36 : x - Step 2: Convert to fraction form
7,621,517,192.68/11,428,350,432.84 = 3,420,868,897.36/x - Step 3: Cross multiply
7,621,517,192.68x = 11,428,350,432.84 × 3,420,868,897.36 - Step 4: Simplify right side
7,621,517,192.68x = 39,094,888,543,833,055,232 - Step 5: Solve for x
x = 39,094,888,543,833,055,232/7,621,517,192.68 - Step 6: Final answer
x = 5,129,541,475.20
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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.