Finding the Fourth Proportional to 324,731,078.12, 448,193,990.45 and 192,645,390.62
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Solution
The fourth proportional to 324,731,078.12, 448,193,990.45 and 192,645,390.62 is: 265,889,260.93
Step by Step Solution
- Step 1: Write the proportion equation
324,731,078.12 : 448,193,990.45 = 192,645,390.62 : x - Step 2: Convert to fraction form
324,731,078.12/448,193,990.45 = 192,645,390.62/x - Step 3: Cross multiply
324,731,078.12x = 448,193,990.45 × 192,645,390.62 - Step 4: Simplify right side
324,731,078.12x = 86,342,506,363,776,800 - Step 5: Solve for x
x = 86,342,506,363,776,800/324,731,078.12 - Step 6: Final answer
x = 265,889,260.93
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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.