Finding the Fourth Proportional to 39,450,298.62, 54,436,697.14 and 21,806,817.81
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Solution
The fourth proportional to 39,450,298.62, 54,436,697.14 and 21,806,817.81 is: 30,090,802.31
Step by Step Solution
- Step 1: Write the proportion equation
39,450,298.62 : 54,436,697.14 = 21,806,817.81 : x - Step 2: Convert to fraction form
39,450,298.62/54,436,697.14 = 21,806,817.81/x - Step 3: Cross multiply
39,450,298.62x = 54,436,697.14 × 21,806,817.81 - Step 4: Simplify right side
39,450,298.62x = 1,187,091,136,710,128 - Step 5: Solve for x
x = 1,187,091,136,710,128/39,450,298.62 - Step 6: Final answer
x = 30,090,802.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.