Finding the Fourth Proportional to 411,721,821.05, 568,185,985.49 and 223,558,045.70
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Solution
The fourth proportional to 411,721,821.05, 568,185,985.49 and 223,558,045.70 is: 308,515,463.63
Step by Step Solution
- Step 1: Write the proportion equation
411,721,821.05 : 568,185,985.49 = 223,558,045.70 : x - Step 2: Convert to fraction form
411,721,821.05/568,185,985.49 = 223,558,045.70/x - Step 3: Cross multiply
411,721,821.05x = 568,185,985.49 × 223,558,045.70 - Step 4: Simplify right side
411,721,821.05x = 127,022,548,506,314,240 - Step 5: Solve for x
x = 127,022,548,506,314,240/411,721,821.05 - Step 6: Final answer
x = 308,515,463.63
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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.