Finding the Fourth Proportional to 1,114,805,933.91, 1,538,530,214.81 and 613,103,136.62
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Solution
The fourth proportional to 1,114,805,933.91, 1,538,530,214.81 and 613,103,136.62 is: 846,136,239.31
Step by Step Solution
- Step 1: Write the proportion equation
1,114,805,933.91 : 1,538,530,214.81 = 613,103,136.62 : x - Step 2: Convert to fraction form
1,114,805,933.91/1,538,530,214.81 = 613,103,136.62/x - Step 3: Cross multiply
1,114,805,933.91x = 1,538,530,214.81 × 613,103,136.62 - Step 4: Simplify right side
1,114,805,933.91x = 943,277,700,473,895,296 - Step 5: Solve for x
x = 943,277,700,473,895,296/1,114,805,933.91 - Step 6: Final answer
x = 846,136,239.31
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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.