Finding the Fourth Proportional to 28,772,559.48, 43,121,638.16 and 21,527,247.18
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Solution
The fourth proportional to 28,772,559.48, 43,121,638.16 and 21,527,247.18 is: 32,263,037.43
Step by Step Solution
- Step 1: Write the proportion equation
28,772,559.48 : 43,121,638.16 = 21,527,247.18 : x - Step 2: Convert to fraction form
28,772,559.48/43,121,638.16 = 21,527,247.18/x - Step 3: Cross multiply
28,772,559.48x = 43,121,638.16 × 21,527,247.18 - Step 4: Simplify right side
28,772,559.48x = 928,290,163,476,840.25 - Step 5: Solve for x
x = 928,290,163,476,840.25/28,772,559.48 - Step 6: Final answer
x = 32,263,037.43
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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.