Finding the Fourth Proportional to 28,027,026.12, 38,690,316.18 and 16,422,979.08
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Solution
The fourth proportional to 28,027,026.12, 38,690,316.18 and 16,422,979.08 is: 22,671,340.53
Step by Step Solution
- Step 1: Write the proportion equation
28,027,026.12 : 38,690,316.18 = 16,422,979.08 : x - Step 2: Convert to fraction form
28,027,026.12/38,690,316.18 = 16,422,979.08/x - Step 3: Cross multiply
28,027,026.12x = 38,690,316.18 × 16,422,979.08 - Step 4: Simplify right side
28,027,026.12x = 635,410,253,222,725.50 - Step 5: Solve for x
x = 635,410,253,222,725.50/28,027,026.12 - Step 6: Final answer
x = 22,671,340.53
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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.