Finding the Fourth Proportional to 8,696,055.36, 12,985,523.16 and 7,101,780.96
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Solution
The fourth proportional to 8,696,055.36, 12,985,523.16 and 7,101,780.96 is: 10,604,847.52
Step by Step Solution
- Step 1: Write the proportion equation
8,696,055.36 : 12,985,523.16 = 7,101,780.96 : x - Step 2: Convert to fraction form
8,696,055.36/12,985,523.16 = 7,101,780.96/x - Step 3: Cross multiply
8,696,055.36x = 12,985,523.16 × 7,101,780.96 - Step 4: Simplify right side
8,696,055.36x = 92,220,341,133,327.03 - Step 5: Solve for x
x = 92,220,341,133,327.03/8,696,055.36 - Step 6: Final answer
x = 10,604,847.52
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.