Finding the Fourth Proportional to 2,128,153.95, 2,935,541.69 and 1,516,504.34
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Solution
The fourth proportional to 2,128,153.95, 2,935,541.69 and 1,516,504.34 is: 2,091,841.94
Step by Step Solution
- Step 1: Write the proportion equation
2,128,153.95 : 2,935,541.69 = 1,516,504.34 : x - Step 2: Convert to fraction form
2,128,153.95/2,935,541.69 = 1,516,504.34/x - Step 3: Cross multiply
2,128,153.95x = 2,935,541.69 × 1,516,504.34 - Step 4: Simplify right side
2,128,153.95x = 4,451,761,690,875.70 - Step 5: Solve for x
x = 4,451,761,690,875.70/2,128,153.95 - Step 6: Final answer
x = 2,091,841.94
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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.