Finding the Fourth Proportional to 6,319,715.63, 8,730,135.78 and 5,028,904.49
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Solution
The fourth proportional to 6,319,715.63, 8,730,135.78 and 5,028,904.49 is: 6,946,992.81
Step by Step Solution
- Step 1: Write the proportion equation
6,319,715.63 : 8,730,135.78 = 5,028,904.49 : x - Step 2: Convert to fraction form
6,319,715.63/8,730,135.78 = 5,028,904.49/x - Step 3: Cross multiply
6,319,715.63x = 8,730,135.78 × 5,028,904.49 - Step 4: Simplify right side
6,319,715.63x = 43,903,019,023,093.39 - Step 5: Solve for x
x = 43,903,019,023,093.39/6,319,715.63 - Step 6: Final answer
x = 6,946,992.81
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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.