Finding the Fourth Proportional to 14,644,651.61, 20,209,618.79 and 8,118,264.53
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Solution
The fourth proportional to 14,644,651.61, 20,209,618.79 and 8,118,264.53 is: 11,203,204.81
Step by Step Solution
- Step 1: Write the proportion equation
14,644,651.61 : 20,209,618.79 = 8,118,264.53 : x - Step 2: Convert to fraction form
14,644,651.61/20,209,618.79 = 8,118,264.53/x - Step 3: Cross multiply
14,644,651.61x = 20,209,618.79 × 8,118,264.53 - Step 4: Simplify right side
14,644,651.61x = 164,067,031,246,039.12 - Step 5: Solve for x
x = 164,067,031,246,039.12/14,644,651.61 - Step 6: Final answer
x = 11,203,204.81
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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.