Finding the Fourth Proportional to 268,560,043.80, 402,840,065.70 and 214,812,331.80
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Solution
The fourth proportional to 268,560,043.80, 402,840,065.70 and 214,812,331.80 is: 322,218,497.70
Step by Step Solution
- Step 1: Write the proportion equation
268,560,043.80 : 402,840,065.70 = 214,812,331.80 : x - Step 2: Convert to fraction form
268,560,043.80/402,840,065.70 = 214,812,331.80/x - Step 3: Cross multiply
268,560,043.80x = 402,840,065.70 × 214,812,331.80 - Step 4: Simplify right side
268,560,043.80x = 86,535,013,855,482,208 - Step 5: Solve for x
x = 86,535,013,855,482,208/268,560,043.80 - Step 6: Final answer
x = 322,218,497.70
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1.5x scale
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.