Finding the Fourth Proportional to 21,135,510.99, 31,693,274.06 and 8,187,725.79
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Solution
The fourth proportional to 21,135,510.99, 31,693,274.06 and 8,187,725.79 is: 12,277,717.70
Step by Step Solution
- Step 1: Write the proportion equation
21,135,510.99 : 31,693,274.06 = 8,187,725.79 : x - Step 2: Convert to fraction form
21,135,510.99/31,693,274.06 = 8,187,725.79/x - Step 3: Cross multiply
21,135,510.99x = 31,693,274.06 × 8,187,725.79 - Step 4: Simplify right side
21,135,510.99x = 259,495,837,349,661.38 - Step 5: Solve for x
x = 259,495,837,349,661.38/21,135,510.99 - Step 6: Final answer
x = 12,277,717.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.