Finding the Fourth Proportional to 15,461,235.68, 21,336,761.58 and 8,492,557.28
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Solution
The fourth proportional to 15,461,235.68, 21,336,761.58 and 8,492,557.28 is: 11,719,869.85
Step by Step Solution
- Step 1: Write the proportion equation
15,461,235.68 : 21,336,761.58 = 8,492,557.28 : x - Step 2: Convert to fraction form
15,461,235.68/21,336,761.58 = 8,492,557.28/x - Step 3: Cross multiply
15,461,235.68x = 21,336,761.58 × 8,492,557.28 - Step 4: Simplify right side
15,461,235.68x = 181,203,669,887,853.28 - Step 5: Solve for x
x = 181,203,669,887,853.28/15,461,235.68 - Step 6: Final answer
x = 11,719,869.85
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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.