Finding the Fourth Proportional to 15,459,682.14, 21,336,986.76 and 8,937,093.18
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Solution
The fourth proportional to 15,459,682.14, 21,336,986.76 and 8,937,093.18 is: 12,334,706.31
Step by Step Solution
- Step 1: Write the proportion equation
15,459,682.14 : 21,336,986.76 = 8,937,093.18 : x - Step 2: Convert to fraction form
15,459,682.14/21,336,986.76 = 8,937,093.18/x - Step 3: Cross multiply
15,459,682.14x = 21,336,986.76 × 8,937,093.18 - Step 4: Simplify right side
15,459,682.14x = 190,690,638,854,546.31 - Step 5: Solve for x
x = 190,690,638,854,546.31/15,459,682.14 - Step 6: Final answer
x = 12,334,706.31
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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.