Finding the Fourth Proportional to 6,368,749.40, 8,788,787.34 and 3,615,412.88
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Solution
The fourth proportional to 6,368,749.40, 8,788,787.34 and 3,615,412.88 is: 4,989,220.48
Step by Step Solution
- Step 1: Write the proportion equation
6,368,749.40 : 8,788,787.34 = 3,615,412.88 : x - Step 2: Convert to fraction form
6,368,749.40/8,788,787.34 = 3,615,412.88/x - Step 3: Cross multiply
6,368,749.40x = 8,788,787.34 × 3,615,412.88 - Step 4: Simplify right side
6,368,749.40x = 31,775,094,948,616.94 - Step 5: Solve for x
x = 31,775,094,948,616.94/6,368,749.40 - Step 6: Final answer
x = 4,989,220.48
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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.