Finding the Fourth Proportional to 325,557,315.30, 488,335,972.95 and 281,719,337.70
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Solution
The fourth proportional to 325,557,315.30, 488,335,972.95 and 281,719,337.70 is: 422,579,006.55
Step by Step Solution
- Step 1: Write the proportion equation
325,557,315.30 : 488,335,972.95 = 281,719,337.70 : x - Step 2: Convert to fraction form
325,557,315.30/488,335,972.95 = 281,719,337.70/x - Step 3: Cross multiply
325,557,315.30x = 488,335,972.95 × 281,719,337.70 - Step 4: Simplify right side
325,557,315.30x = 137,573,686,874,559,104 - Step 5: Solve for x
x = 137,573,686,874,559,104/325,557,315.30 - Step 6: Final answer
x = 422,579,006.55
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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.