Finding the Fourth Proportional to 209,959,820.20, 314,939,730.30 and 180,734,501.80
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Solution
The fourth proportional to 209,959,820.20, 314,939,730.30 and 180,734,501.80 is: 271,101,752.70
Step by Step Solution
- Step 1: Write the proportion equation
209,959,820.20 : 314,939,730.30 = 180,734,501.80 : x - Step 2: Convert to fraction form
209,959,820.20/314,939,730.30 = 180,734,501.80/x - Step 3: Cross multiply
209,959,820.20x = 314,939,730.30 × 180,734,501.80 - Step 4: Simplify right side
209,959,820.20x = 56,920,475,252,796,872 - Step 5: Solve for x
x = 56,920,475,252,796,872/209,959,820.20 - Step 6: Final answer
x = 271,101,752.70
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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.