Finding the Fourth Proportional to 285,095,374.84, 393,431,617.43 and 154,715,182.84
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Solution
The fourth proportional to 285,095,374.84, 393,431,617.43 and 154,715,182.84 is: 213,506,952.40
Step by Step Solution
- Step 1: Write the proportion equation
285,095,374.84 : 393,431,617.43 = 154,715,182.84 : x - Step 2: Convert to fraction form
285,095,374.84/393,431,617.43 = 154,715,182.84/x - Step 3: Cross multiply
285,095,374.84x = 393,431,617.43 × 154,715,182.84 - Step 4: Simplify right side
285,095,374.84x = 60,869,844,625,719,384 - Step 5: Solve for x
x = 60,869,844,625,719,384/285,095,374.84 - Step 6: Final answer
x = 213,506,952.40
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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.