Finding the Fourth Proportional to 369,914,620.82, 510,482,134.29 and 221,235,718.07
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Solution
The fourth proportional to 369,914,620.82, 510,482,134.29 and 221,235,718.07 is: 305,305,265.55
Step by Step Solution
- Step 1: Write the proportion equation
369,914,620.82 : 510,482,134.29 = 221,235,718.07 : x - Step 2: Convert to fraction form
369,914,620.82/510,482,134.29 = 221,235,718.07/x - Step 3: Cross multiply
369,914,620.82x = 510,482,134.29 × 221,235,718.07 - Step 4: Simplify right side
369,914,620.82x = 112,936,881,541,287,920 - Step 5: Solve for x
x = 112,936,881,541,287,920/369,914,620.82 - Step 6: Final answer
x = 305,305,265.55
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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.