Finding the Fourth Proportional to 215,744,890.77, 297,529,396.02 and 141,378,441.76
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Solution
The fourth proportional to 215,744,890.77, 297,529,396.02 and 141,378,441.76 is: 194,972,136.94
Step by Step Solution
- Step 1: Write the proportion equation
215,744,890.77 : 297,529,396.02 = 141,378,441.76 : x - Step 2: Convert to fraction form
215,744,890.77/297,529,396.02 = 141,378,441.76/x - Step 3: Cross multiply
215,744,890.77x = 297,529,396.02 × 141,378,441.76 - Step 4: Simplify right side
215,744,890.77x = 42,064,242,387,473,448 - Step 5: Solve for x
x = 42,064,242,387,473,448/215,744,890.77 - Step 6: Final answer
x = 194,972,136.94
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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.