Finding the Fourth Proportional to 21,645,198.18, 29,862,062.85 and 12,353,284.53
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Solution
The fourth proportional to 21,645,198.18, 29,862,062.85 and 12,353,284.53 is: 17,042,789.63
Step by Step Solution
- Step 1: Write the proportion equation
21,645,198.18 : 29,862,062.85 = 12,353,284.53 : x - Step 2: Convert to fraction form
21,645,198.18/29,862,062.85 = 12,353,284.53/x - Step 3: Cross multiply
21,645,198.18x = 29,862,062.85 × 12,353,284.53 - Step 4: Simplify right side
21,645,198.18x = 368,894,559,038,792.69 - Step 5: Solve for x
x = 368,894,559,038,792.69/21,645,198.18 - Step 6: Final answer
x = 17,042,789.63
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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.