Finding the Fourth Proportional to 86,305,577.96, 129,509,442.62 and 31,756,470.44
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Solution
The fourth proportional to 86,305,577.96, 129,509,442.62 and 31,756,470.44 is: 47,653,499.15
Step by Step Solution
- Step 1: Write the proportion equation
86,305,577.96 : 129,509,442.62 = 31,756,470.44 : x - Step 2: Convert to fraction form
86,305,577.96/129,509,442.62 = 31,756,470.44/x - Step 3: Cross multiply
86,305,577.96x = 129,509,442.62 × 31,756,470.44 - Step 4: Simplify right side
86,305,577.96x = 4,112,762,785,694,750 - Step 5: Solve for x
x = 4,112,762,785,694,750/86,305,577.96 - Step 6: Final answer
x = 47,653,499.15
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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.