Finding the Fourth Proportional to 20,790,476.49, 31,183,332.53 and 5,439,248.15
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Solution
The fourth proportional to 20,790,476.49, 31,183,332.53 and 5,439,248.15 is: 8,158,248.99
Step by Step Solution
- Step 1: Write the proportion equation
20,790,476.49 : 31,183,332.53 = 5,439,248.15 : x - Step 2: Convert to fraction form
20,790,476.49/31,183,332.53 = 5,439,248.15/x - Step 3: Cross multiply
20,790,476.49x = 31,183,332.53 × 5,439,248.15 - Step 4: Simplify right side
20,790,476.49x = 169,613,883,825,399.41 - Step 5: Solve for x
x = 169,613,883,825,399.41/20,790,476.49 - Step 6: Final answer
x = 8,158,248.99
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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.