Finding the Fourth Proportional to 4,128,979.98, 6,190,060.12 and 1,821,830.58
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Solution
The fourth proportional to 4,128,979.98, 6,190,060.12 and 1,821,830.58 is: 2,731,241.34
Step by Step Solution
- Step 1: Write the proportion equation
4,128,979.98 : 6,190,060.12 = 1,821,830.58 : x - Step 2: Convert to fraction form
4,128,979.98/6,190,060.12 = 1,821,830.58/x - Step 3: Cross multiply
4,128,979.98x = 6,190,060.12 × 1,821,830.58 - Step 4: Simplify right side
4,128,979.98x = 11,277,240,818,654.47 - Step 5: Solve for x
x = 11,277,240,818,654.47/4,128,979.98 - Step 6: Final answer
x = 2,731,241.34
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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.