Finding the Fourth Proportional to 15,457,429.06, 21,330,419.17 and 8,581,468.66
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Solution
The fourth proportional to 15,457,429.06, 21,330,419.17 and 8,581,468.66 is: 11,841,964.33
Step by Step Solution
- Step 1: Write the proportion equation
15,457,429.06 : 21,330,419.17 = 8,581,468.66 : x - Step 2: Convert to fraction form
15,457,429.06/21,330,419.17 = 8,581,468.66/x - Step 3: Cross multiply
15,457,429.06x = 21,330,419.17 × 8,581,468.66 - Step 4: Simplify right side
15,457,429.06x = 183,046,323,612,018.22 - Step 5: Solve for x
x = 183,046,323,612,018.22/15,457,429.06 - Step 6: Final answer
x = 11,841,964.33
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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.