Finding the Fourth Proportional to 10,649,403.20, 15,964,773.60 and 6,385,044.80
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Solution
The fourth proportional to 10,649,403.20, 15,964,773.60 and 6,385,044.80 is: 9,571,972.51
Step by Step Solution
- Step 1: Write the proportion equation
10,649,403.20 : 15,964,773.60 = 6,385,044.80 : x - Step 2: Convert to fraction form
10,649,403.20/15,964,773.60 = 6,385,044.80/x - Step 3: Cross multiply
10,649,403.20x = 15,964,773.60 × 6,385,044.80 - Step 4: Simplify right side
10,649,403.20x = 101,935,794,657,857.28 - Step 5: Solve for x
x = 101,935,794,657,857.28/10,649,403.20 - Step 6: Final answer
x = 9,571,972.51
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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.