Finding the Fourth Proportional to 15,979,903.88, 22,052,268.12 and 8,637,712.96
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Solution
The fourth proportional to 15,979,903.88, 22,052,268.12 and 8,637,712.96 is: 11,920,044.30
Step by Step Solution
- Step 1: Write the proportion equation
15,979,903.88 : 22,052,268.12 = 8,637,712.96 : x - Step 2: Convert to fraction form
15,979,903.88/22,052,268.12 = 8,637,712.96/x - Step 3: Cross multiply
15,979,903.88x = 22,052,268.12 × 8,637,712.96 - Step 4: Simplify right side
15,979,903.88x = 190,481,162,137,518.88 - Step 5: Solve for x
x = 190,481,162,137,518.88/15,979,903.88 - Step 6: Final answer
x = 11,920,044.30
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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.