Finding the Fourth Proportional to 209,123,279.85, 313,618,368.84 and 69,037,654.08
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Solution
The fourth proportional to 209,123,279.85, 313,618,368.84 and 69,037,654.08 is: 103,534,510.73
Step by Step Solution
- Step 1: Write the proportion equation
209,123,279.85 : 313,618,368.84 = 69,037,654.08 : x - Step 2: Convert to fraction form
209,123,279.85/313,618,368.84 = 69,037,654.08/x - Step 3: Cross multiply
209,123,279.85x = 313,618,368.84 × 69,037,654.08 - Step 4: Simplify right side
209,123,279.85x = 21,651,476,461,109,768 - Step 5: Solve for x
x = 21,651,476,461,109,768/209,123,279.85 - Step 6: Final answer
x = 103,534,510.73
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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.