Finding the Fourth Proportional to 722,296,676.08, 996,854,505.64 and 428,941,244.08
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Solution
The fourth proportional to 722,296,676.08, 996,854,505.64 and 428,941,244.08 is: 591,989,449.73
Step by Step Solution
- Step 1: Write the proportion equation
722,296,676.08 : 996,854,505.64 = 428,941,244.08 : x - Step 2: Convert to fraction form
722,296,676.08/996,854,505.64 = 428,941,244.08/x - Step 3: Cross multiply
722,296,676.08x = 996,854,505.64 × 428,941,244.08 - Step 4: Simplify right side
722,296,676.08x = 427,592,011,815,974,976 - Step 5: Solve for x
x = 427,592,011,815,974,976/722,296,676.08 - Step 6: Final answer
x = 591,989,449.73
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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.