Finding the Fourth Proportional to 667,985,471.88, 918,551,090.56 and 579,726,241.88
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Solution
The fourth proportional to 667,985,471.88, 918,551,090.56 and 579,726,241.88 is: 797,185,259.44
Step by Step Solution
- Step 1: Write the proportion equation
667,985,471.88 : 918,551,090.56 = 579,726,241.88 : x - Step 2: Convert to fraction form
667,985,471.88/918,551,090.56 = 579,726,241.88/x - Step 3: Cross multiply
667,985,471.88x = 918,551,090.56 × 579,726,241.88 - Step 4: Simplify right side
667,985,471.88x = 532,508,171,705,124,288 - Step 5: Solve for x
x = 532,508,171,705,124,288/667,985,471.88 - Step 6: Final answer
x = 797,185,259.44
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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.