Finding the Fourth Proportional to 625,350,519.84, 862,987,611.60 and 346,909,689.12
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Solution
The fourth proportional to 625,350,519.84, 862,987,611.60 and 346,909,689.12 is: 478,737,531.28
Step by Step Solution
- Step 1: Write the proportion equation
625,350,519.84 : 862,987,611.60 = 346,909,689.12 : x - Step 2: Convert to fraction form
625,350,519.84/862,987,611.60 = 346,909,689.12/x - Step 3: Cross multiply
625,350,519.84x = 862,987,611.60 × 346,909,689.12 - Step 4: Simplify right side
625,350,519.84x = 299,378,764,054,567,296 - Step 5: Solve for x
x = 299,378,764,054,567,296/625,350,519.84 - Step 6: Final answer
x = 478,737,531.28
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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.