Finding the Fourth Proportional to 14,489,780.18, 19,996,376.02 and 7,963,640.96
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Solution
The fourth proportional to 14,489,780.18, 19,996,376.02 and 7,963,640.96 is: 10,990,087.99
Step by Step Solution
- Step 1: Write the proportion equation
14,489,780.18 : 19,996,376.02 = 7,963,640.96 : x - Step 2: Convert to fraction form
14,489,780.18/19,996,376.02 = 7,963,640.96/x - Step 3: Cross multiply
14,489,780.18x = 19,996,376.02 × 7,963,640.96 - Step 4: Simplify right side
14,489,780.18x = 159,243,959,124,433.78 - Step 5: Solve for x
x = 159,243,959,124,433.78/14,489,780.18 - Step 6: Final answer
x = 10,990,087.99
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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.