Finding the Fourth Proportional to 543,982,286.13, 750,698,097.05 and 309,045,838.21
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Solution
The fourth proportional to 543,982,286.13, 750,698,097.05 and 309,045,838.21 is: 426,484,700.99
Step by Step Solution
- Step 1: Write the proportion equation
543,982,286.13 : 750,698,097.05 = 309,045,838.21 : x - Step 2: Convert to fraction form
543,982,286.13/750,698,097.05 = 309,045,838.21/x - Step 3: Cross multiply
543,982,286.13x = 750,698,097.05 × 309,045,838.21 - Step 4: Simplify right side
543,982,286.13x = 232,000,122,645,469,152 - Step 5: Solve for x
x = 232,000,122,645,469,152/543,982,286.13 - Step 6: Final answer
x = 426,484,700.99
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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.