Finding the Fourth Proportional to 15,057,276.94, 20,779,173.66 and 8,181,758.98
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Solution
The fourth proportional to 15,057,276.94, 20,779,173.66 and 8,181,758.98 is: 11,290,898.84
Step by Step Solution
- Step 1: Write the proportion equation
15,057,276.94 : 20,779,173.66 = 8,181,758.98 : x - Step 2: Convert to fraction form
15,057,276.94/20,779,173.66 = 8,181,758.98/x - Step 3: Cross multiply
15,057,276.94x = 20,779,173.66 × 8,181,758.98 - Step 4: Simplify right side
15,057,276.94x = 170,010,190,689,684.47 - Step 5: Solve for x
x = 170,010,190,689,684.47/15,057,276.94 - Step 6: Final answer
x = 11,290,898.84
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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.