Finding the Fourth Proportional to 472,393,312.30, 708,589,968.45 and 288,727,302.70
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Solution
The fourth proportional to 472,393,312.30, 708,589,968.45 and 288,727,302.70 is: 433,090,954.05
Step by Step Solution
- Step 1: Write the proportion equation
472,393,312.30 : 708,589,968.45 = 288,727,302.70 : x - Step 2: Convert to fraction form
472,393,312.30/708,589,968.45 = 288,727,302.70/x - Step 3: Cross multiply
472,393,312.30x = 708,589,968.45 × 288,727,302.70 - Step 4: Simplify right side
472,393,312.30x = 204,589,270,310,846,592 - Step 5: Solve for x
x = 204,589,270,310,846,592/472,393,312.30 - Step 6: Final answer
x = 433,090,954.05
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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.