Finding the Fourth Proportional to 15,784,807.41, 21,624,824.28 and 15,194,656.68
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Solution
The fourth proportional to 15,784,807.41, 21,624,824.28 and 15,194,656.68 is: 20,816,331.31
Step by Step Solution
- Step 1: Write the proportion equation
15,784,807.41 : 21,624,824.28 = 15,194,656.68 : x - Step 2: Convert to fraction form
15,784,807.41/21,624,824.28 = 15,194,656.68/x - Step 3: Cross multiply
15,784,807.41x = 21,624,824.28 × 15,194,656.68 - Step 4: Simplify right side
15,784,807.41x = 328,581,780,699,928.19 - Step 5: Solve for x
x = 328,581,780,699,928.19/15,784,807.41 - Step 6: Final answer
x = 20,816,331.31
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.