Finding the Fourth Proportional to 248,816,553.13, 343,366,991.04 and 138,808,266.13
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Solution
The fourth proportional to 248,816,553.13, 343,366,991.04 and 138,808,266.13 is: 191,555,489.67
Step by Step Solution
- Step 1: Write the proportion equation
248,816,553.13 : 343,366,991.04 = 138,808,266.13 : x - Step 2: Convert to fraction form
248,816,553.13/343,366,991.04 = 138,808,266.13/x - Step 3: Cross multiply
248,816,553.13x = 343,366,991.04 × 138,808,266.13 - Step 4: Simplify right side
248,816,553.13x = 47,662,176,672,537,648 - Step 5: Solve for x
x = 47,662,176,672,537,648/248,816,553.13 - Step 6: Final answer
x = 191,555,489.67
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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.