Finding the Fourth Proportional to 8,143,551.14, 12,215,316.38 and 2,078,283.02
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Solution
The fourth proportional to 8,143,551.14, 12,215,316.38 and 2,078,283.02 is: 3,117,421.89
Step by Step Solution
- Step 1: Write the proportion equation
8,143,551.14 : 12,215,316.38 = 2,078,283.02 : x - Step 2: Convert to fraction form
8,143,551.14/12,215,316.38 = 2,078,283.02/x - Step 3: Cross multiply
8,143,551.14x = 12,215,316.38 × 2,078,283.02 - Step 4: Simplify right side
8,143,551.14x = 25,386,884,545,013.87 - Step 5: Solve for x
x = 25,386,884,545,013.87/8,143,551.14 - Step 6: Final answer
x = 3,117,421.89
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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.