Finding the Fourth Proportional to 70,991,741.28, 106,207,428.06 and 53,769,553.68
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Solution
The fourth proportional to 70,991,741.28, 106,207,428.06 and 53,769,553.68 is: 80,442,117.65
Step by Step Solution
- Step 1: Write the proportion equation
70,991,741.28 : 106,207,428.06 = 53,769,553.68 : x - Step 2: Convert to fraction form
70,991,741.28/106,207,428.06 = 53,769,553.68/x - Step 3: Cross multiply
70,991,741.28x = 106,207,428.06 × 53,769,553.68 - Step 4: Simplify right side
70,991,741.28x = 5,710,726,004,286,908 - Step 5: Solve for x
x = 5,710,726,004,286,908/70,991,741.28 - Step 6: Final answer
x = 80,442,117.65
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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.