Finding the Fourth Proportional to 13,212,812.34, 19,805,827.59 and 8,953,411.14
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Solution
The fourth proportional to 13,212,812.34, 19,805,827.59 and 8,953,411.14 is: 13,421,042.61
Step by Step Solution
- Step 1: Write the proportion equation
13,212,812.34 : 19,805,827.59 = 8,953,411.14 : x - Step 2: Convert to fraction form
13,212,812.34/19,805,827.59 = 8,953,411.14/x - Step 3: Cross multiply
13,212,812.34x = 19,805,827.59 × 8,953,411.14 - Step 4: Simplify right side
13,212,812.34x = 177,329,717,381,225.38 - Step 5: Solve for x
x = 177,329,717,381,225.38/13,212,812.34 - Step 6: Final answer
x = 13,421,042.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.