Finding the Fourth Proportional to 51,549,720.62, 71,138,114.30 and 28,028,257.02
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Solution
The fourth proportional to 51,549,720.62, 71,138,114.30 and 28,028,257.02 is: 38,678,722.75
Step by Step Solution
- Step 1: Write the proportion equation
51,549,720.62 : 71,138,114.30 = 28,028,257.02 : x - Step 2: Convert to fraction form
51,549,720.62/71,138,114.30 = 28,028,257.02/x - Step 3: Cross multiply
51,549,720.62x = 71,138,114.30 × 28,028,257.02 - Step 4: Simplify right side
51,549,720.62x = 1,993,877,351,378,396 - Step 5: Solve for x
x = 1,993,877,351,378,396/51,549,720.62 - Step 6: Final answer
x = 38,678,722.75
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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.