Finding the Fourth Proportional to 247,931,145.12, 341,366,170.08 and 210,682,860.96
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Solution
The fourth proportional to 247,931,145.12, 341,366,170.08 and 210,682,860.96 is: 290,080,543.58
Step by Step Solution
- Step 1: Write the proportion equation
247,931,145.12 : 341,366,170.08 = 210,682,860.96 : x - Step 2: Convert to fraction form
247,931,145.12/341,366,170.08 = 210,682,860.96/x - Step 3: Cross multiply
247,931,145.12x = 341,366,170.08 × 210,682,860.96 - Step 4: Simplify right side
247,931,145.12x = 71,920,001,347,412,352 - Step 5: Solve for x
x = 71,920,001,347,412,352/247,931,145.12 - Step 6: Final answer
x = 290,080,543.58
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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.