Finding the Fourth Proportional to 64,282,641.55, 96,449,512.94 and 20,570,135.14
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Solution
The fourth proportional to 64,282,641.55, 96,449,512.94 and 20,570,135.14 is: 30,863,378.79
Step by Step Solution
- Step 1: Write the proportion equation
64,282,641.55 : 96,449,512.94 = 20,570,135.14 : x - Step 2: Convert to fraction form
64,282,641.55/96,449,512.94 = 20,570,135.14/x - Step 3: Cross multiply
64,282,641.55x = 96,449,512.94 × 20,570,135.14 - Step 4: Simplify right side
64,282,641.55x = 1,983,979,515,362,978.75 - Step 5: Solve for x
x = 1,983,979,515,362,978.75/64,282,641.55 - Step 6: Final answer
x = 30,863,378.79
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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.