Finding the Fourth Proportional to 485,516,964.30, 728,275,446.45 and 429,396,794.70
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Solution
The fourth proportional to 485,516,964.30, 728,275,446.45 and 429,396,794.70 is: 644,095,192.05
Step by Step Solution
- Step 1: Write the proportion equation
485,516,964.30 : 728,275,446.45 = 429,396,794.70 : x - Step 2: Convert to fraction form
485,516,964.30/728,275,446.45 = 429,396,794.70/x - Step 3: Cross multiply
485,516,964.30x = 728,275,446.45 × 429,396,794.70 - Step 4: Simplify right side
485,516,964.30x = 312,719,142,364,341,504 - Step 5: Solve for x
x = 312,719,142,364,341,504/485,516,964.30 - Step 6: Final answer
x = 644,095,192.05
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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.