Finding the Fourth Proportional to 13,255,025.36, 19,869,929.40 and 8,449,221.20
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Solution
The fourth proportional to 13,255,025.36, 19,869,929.40 and 8,449,221.20 is: 12,665,794.61
Step by Step Solution
- Step 1: Write the proportion equation
13,255,025.36 : 19,869,929.40 = 8,449,221.20 : x - Step 2: Convert to fraction form
13,255,025.36/19,869,929.40 = 8,449,221.20/x - Step 3: Cross multiply
13,255,025.36x = 19,869,929.40 × 8,449,221.20 - Step 4: Simplify right side
13,255,025.36x = 167,885,428,728,983.25 - Step 5: Solve for x
x = 167,885,428,728,983.25/13,255,025.36 - Step 6: Final answer
x = 12,665,794.61
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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.