Finding the Fourth Proportional to 20,661,792.48, 28,513,475.99 and 11,369,562.49
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Solution
The fourth proportional to 20,661,792.48, 28,513,475.99 and 11,369,562.49 is: 15,690,107.59
Step by Step Solution
- Step 1: Write the proportion equation
20,661,792.48 : 28,513,475.99 = 11,369,562.49 : x - Step 2: Convert to fraction form
20,661,792.48/28,513,475.99 = 11,369,562.49/x - Step 3: Cross multiply
20,661,792.48x = 28,513,475.99 × 11,369,562.49 - Step 4: Simplify right side
20,661,792.48x = 324,185,747,075,419.62 - Step 5: Solve for x
x = 324,185,747,075,419.62/20,661,792.48 - Step 6: Final answer
x = 15,690,107.59
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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.