Finding the Fourth Proportional to 3,886,788.79, 5,363,787.08 and 2,144,458.07
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Solution
The fourth proportional to 3,886,788.79, 5,363,787.08 and 2,144,458.07 is: 2,959,362.37
Step by Step Solution
- Step 1: Write the proportion equation
3,886,788.79 : 5,363,787.08 = 2,144,458.07 : x - Step 2: Convert to fraction form
3,886,788.79/5,363,787.08 = 2,144,458.07/x - Step 3: Cross multiply
3,886,788.79x = 5,363,787.08 × 2,144,458.07 - Step 4: Simplify right side
3,886,788.79x = 11,502,416,478,745.45 - Step 5: Solve for x
x = 11,502,416,478,745.45/3,886,788.79 - Step 6: Final answer
x = 2,959,362.37
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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.