Finding the Fourth Proportional to 708,594,328.20, 1,062,891,492.30 and 320,429,821.80
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Solution
The fourth proportional to 708,594,328.20, 1,062,891,492.30 and 320,429,821.80 is: 480,644,732.70
Step by Step Solution
- Step 1: Write the proportion equation
708,594,328.20 : 1,062,891,492.30 = 320,429,821.80 : x - Step 2: Convert to fraction form
708,594,328.20/1,062,891,492.30 = 320,429,821.80/x - Step 3: Cross multiply
708,594,328.20x = 1,062,891,492.30 × 320,429,821.80 - Step 4: Simplify right side
708,594,328.20x = 340,582,131,470,425,088 - Step 5: Solve for x
x = 340,582,131,470,425,088/708,594,328.20 - Step 6: Final answer
x = 480,644,732.70
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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.