Finding the Fourth Proportional to 25,513,260.52, 38,232,084.70 and 20,996,405.80
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Solution
The fourth proportional to 25,513,260.52, 38,232,084.70 and 20,996,405.80 is: 31,463,495.79
Step by Step Solution
- Step 1: Write the proportion equation
25,513,260.52 : 38,232,084.70 = 20,996,405.80 : x - Step 2: Convert to fraction form
25,513,260.52/38,232,084.70 = 20,996,405.80/x - Step 3: Cross multiply
25,513,260.52x = 38,232,084.70 × 20,996,405.80 - Step 4: Simplify right side
25,513,260.52x = 802,736,364,941,171.38 - Step 5: Solve for x
x = 802,736,364,941,171.38/25,513,260.52 - Step 6: Final answer
x = 31,463,495.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.