Finding the Fourth Proportional to 137,107,091.35, 189,207,765.53 and 78,371,017.62
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Solution
The fourth proportional to 137,107,091.35, 189,207,765.53 and 78,371,017.62 is: 108,151,992.58
Step by Step Solution
- Step 1: Write the proportion equation
137,107,091.35 : 189,207,765.53 = 78,371,017.62 : x - Step 2: Convert to fraction form
137,107,091.35/189,207,765.53 = 78,371,017.62/x - Step 3: Cross multiply
137,107,091.35x = 189,207,765.53 × 78,371,017.62 - Step 4: Simplify right side
137,107,091.35x = 14,828,405,126,192,460 - Step 5: Solve for x
x = 14,828,405,126,192,460/137,107,091.35 - Step 6: Final answer
x = 108,151,992.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.