Finding the Fourth Proportional to 217,281,246.30, 325,921,869.45 and 115,244,574.30
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Solution
The fourth proportional to 217,281,246.30, 325,921,869.45 and 115,244,574.30 is: 172,866,861.45
Step by Step Solution
- Step 1: Write the proportion equation
217,281,246.30 : 325,921,869.45 = 115,244,574.30 : x - Step 2: Convert to fraction form
217,281,246.30/325,921,869.45 = 115,244,574.30/x - Step 3: Cross multiply
217,281,246.30x = 325,921,869.45 × 115,244,574.30 - Step 4: Simplify right side
217,281,246.30x = 37,560,727,099,825,424 - Step 5: Solve for x
x = 37,560,727,099,825,424/217,281,246.30 - Step 6: Final answer
x = 172,866,861.45
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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.