Finding the Fourth Proportional to 10,638,656.20, 15,968,006.70 and 5,593,587.40
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Solution
The fourth proportional to 10,638,656.20, 15,968,006.70 and 5,593,587.40 is: 8,395,650.67
Step by Step Solution
- Step 1: Write the proportion equation
10,638,656.20 : 15,968,006.70 = 5,593,587.40 : x - Step 2: Convert to fraction form
10,638,656.20/15,968,006.70 = 5,593,587.40/x - Step 3: Cross multiply
10,638,656.20x = 15,968,006.70 × 5,593,587.40 - Step 4: Simplify right side
10,638,656.20x = 89,318,441,080,235.58 - Step 5: Solve for x
x = 89,318,441,080,235.58/10,638,656.20 - Step 6: Final answer
x = 8,395,650.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.