Finding the Fourth Proportional to 137,107,082.07, 189,207,752.79 and 78,371,008.41
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Solution
The fourth proportional to 137,107,082.07, 189,207,752.79 and 78,371,008.41 is: 108,151,979.91
Step by Step Solution
- Step 1: Write the proportion equation
137,107,082.07 : 189,207,752.79 = 78,371,008.41 : x - Step 2: Convert to fraction form
137,107,082.07/189,207,752.79 = 78,371,008.41/x - Step 3: Cross multiply
137,107,082.07x = 189,207,752.79 × 78,371,008.41 - Step 4: Simplify right side
137,107,082.07x = 14,828,402,385,142,290 - Step 5: Solve for x
x = 14,828,402,385,142,290/137,107,082.07 - Step 6: Final answer
x = 108,151,979.91
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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.