Finding the Fourth Proportional to 3,953,142.18, 5,455,921.32 and 2,502,972.18
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Solution
The fourth proportional to 3,953,142.18, 5,455,921.32 and 2,502,972.18 is: 3,454,472.08
Step by Step Solution
- Step 1: Write the proportion equation
3,953,142.18 : 5,455,921.32 = 2,502,972.18 : x - Step 2: Convert to fraction form
3,953,142.18/5,455,921.32 = 2,502,972.18/x - Step 3: Cross multiply
3,953,142.18x = 5,455,921.32 × 2,502,972.18 - Step 4: Simplify right side
3,953,142.18x = 13,656,019,280,228.88 - Step 5: Solve for x
x = 13,656,019,280,228.88/3,953,142.18 - Step 6: Final answer
x = 3,454,472.08
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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.