Finding the Fourth Proportional to 5,618,988.14, 8,428,136.18 and 3,460,424.58
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Solution
The fourth proportional to 5,618,988.14, 8,428,136.18 and 3,460,424.58 is: 5,190,423.77
Step by Step Solution
- Step 1: Write the proportion equation
5,618,988.14 : 8,428,136.18 = 3,460,424.58 : x - Step 2: Convert to fraction form
5,618,988.14/8,428,136.18 = 3,460,424.58/x - Step 3: Cross multiply
5,618,988.14x = 8,428,136.18 × 3,460,424.58 - Step 4: Simplify right side
5,618,988.14x = 29,164,929,583,557.18 - Step 5: Solve for x
x = 29,164,929,583,557.18/5,618,988.14 - Step 6: Final answer
x = 5,190,423.77
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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.