Finding the Fourth Proportional to 12,979,762.84, 17,917,588.22 and 8,087,402.12
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Solution
The fourth proportional to 12,979,762.84, 17,917,588.22 and 8,087,402.12 is: 11,164,051.51
Step by Step Solution
- Step 1: Write the proportion equation
12,979,762.84 : 17,917,588.22 = 8,087,402.12 : x - Step 2: Convert to fraction form
12,979,762.84/17,917,588.22 = 8,087,402.12/x - Step 3: Cross multiply
12,979,762.84x = 17,917,588.22 × 8,087,402.12 - Step 4: Simplify right side
12,979,762.84x = 144,906,740,955,715.03 - Step 5: Solve for x
x = 144,906,740,955,715.03/12,979,762.84 - Step 6: Final answer
x = 11,164,051.51
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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.