Finding the Fourth Proportional to 3,947,235.18, 5,445,486.27 and 2,316,141.42
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Solution
The fourth proportional to 3,947,235.18, 5,445,486.27 and 2,316,141.42 is: 3,195,278.65
Step by Step Solution
- Step 1: Write the proportion equation
3,947,235.18 : 5,445,486.27 = 2,316,141.42 : x - Step 2: Convert to fraction form
3,947,235.18/5,445,486.27 = 2,316,141.42/x - Step 3: Cross multiply
3,947,235.18x = 5,445,486.27 × 2,316,141.42 - Step 4: Simplify right side
3,947,235.18x = 12,612,516,301,988.30 - Step 5: Solve for x
x = 12,612,516,301,988.30/3,947,235.18 - Step 6: Final answer
x = 3,195,278.65
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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.