Finding the Fourth Proportional to 2,135,451.16, 2,946,721.98 and 1,445,719.96
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Solution
The fourth proportional to 2,135,451.16, 2,946,721.98 and 1,445,719.96 is: 1,994,957.72
Step by Step Solution
- Step 1: Write the proportion equation
2,135,451.16 : 2,946,721.98 = 1,445,719.96 : x - Step 2: Convert to fraction form
2,135,451.16/2,946,721.98 = 1,445,719.96/x - Step 3: Cross multiply
2,135,451.16x = 2,946,721.98 × 1,445,719.96 - Step 4: Simplify right side
2,135,451.16x = 4,260,134,783,056.72 - Step 5: Solve for x
x = 4,260,134,783,056.72/2,135,451.16 - Step 6: Final answer
x = 1,994,957.72
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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.