Finding the Fourth Proportional to 659,589,985.70, 989,133,036.15 and 199,375,201.70
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Solution
The fourth proportional to 659,589,985.70, 989,133,036.15 and 199,375,201.70 is: 298,986,647.56
Step by Step Solution
- Step 1: Write the proportion equation
659,589,985.70 : 989,133,036.15 = 199,375,201.70 : x - Step 2: Convert to fraction form
659,589,985.70/989,133,036.15 = 199,375,201.70/x - Step 3: Cross multiply
659,589,985.70x = 989,133,036.15 × 199,375,201.70 - Step 4: Simplify right side
659,589,985.70x = 197,208,598,590,539,616 - Step 5: Solve for x
x = 197,208,598,590,539,616/659,589,985.70 - Step 6: Final answer
x = 298,986,647.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.