Finding the Fourth Proportional to 121,475,163.78, 182,231,641.35 and 39,574,975.75
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Solution
The fourth proportional to 121,475,163.78, 182,231,641.35 and 39,574,975.75 is: 59,368,619.58
Step by Step Solution
- Step 1: Write the proportion equation
121,475,163.78 : 182,231,641.35 = 39,574,975.75 : x - Step 2: Convert to fraction form
121,475,163.78/182,231,641.35 = 39,574,975.75/x - Step 3: Cross multiply
121,475,163.78x = 182,231,641.35 × 39,574,975.75 - Step 4: Simplify right side
121,475,163.78x = 7,211,812,786,853,368 - Step 5: Solve for x
x = 7,211,812,786,853,368/121,475,163.78 - Step 6: Final answer
x = 59,368,619.58
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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.