Finding the Fourth Proportional to 378,418,219.70, 567,627,329.55 and 276,381,547.70
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Solution
The fourth proportional to 378,418,219.70, 567,627,329.55 and 276,381,547.70 is: 414,572,321.55
Step by Step Solution
- Step 1: Write the proportion equation
378,418,219.70 : 567,627,329.55 = 276,381,547.70 : x - Step 2: Convert to fraction form
378,418,219.70/567,627,329.55 = 276,381,547.70/x - Step 3: Cross multiply
378,418,219.70x = 567,627,329.55 × 276,381,547.70 - Step 4: Simplify right side
378,418,219.70x = 156,881,719,857,846,912 - Step 5: Solve for x
x = 156,881,719,857,846,912/378,418,219.70 - Step 6: Final answer
x = 414,572,321.55
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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.