Finding the Fourth Proportional to 2,998,911.18, 4,134,192.96 and 2,137,976.76
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Solution
The fourth proportional to 2,998,911.18, 4,134,192.96 and 2,137,976.76 is: 2,947,339.20
Step by Step Solution
- Step 1: Write the proportion equation
2,998,911.18 : 4,134,192.96 = 2,137,976.76 : x - Step 2: Convert to fraction form
2,998,911.18/4,134,192.96 = 2,137,976.76/x - Step 3: Cross multiply
2,998,911.18x = 4,134,192.96 × 2,137,976.76 - Step 4: Simplify right side
2,998,911.18x = 8,838,808,469,835.61 - Step 5: Solve for x
x = 8,838,808,469,835.61/2,998,911.18 - Step 6: Final answer
x = 2,947,339.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.