Finding the Fourth Proportional to 7,166,136.13, 9,889,267.85 and 3,946,872.13
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Solution
The fourth proportional to 7,166,136.13, 9,889,267.85 and 3,946,872.13 is: 5,446,683.53
Step by Step Solution
- Step 1: Write the proportion equation
7,166,136.13 : 9,889,267.85 = 3,946,872.13 : x - Step 2: Convert to fraction form
7,166,136.13/9,889,267.85 = 3,946,872.13/x - Step 3: Cross multiply
7,166,136.13x = 9,889,267.85 × 3,946,872.13 - Step 4: Simplify right side
7,166,136.13x = 39,031,675,663,270.02 - Step 5: Solve for x
x = 39,031,675,663,270.02/7,166,136.13 - Step 6: Final answer
x = 5,446,683.53
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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.