Finding the Fourth Proportional to 43,638,178.24, 65,473,228.88 and 20,306,048.96
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Solution
The fourth proportional to 43,638,178.24, 65,473,228.88 and 20,306,048.96 is: 30,466,500.78
Step by Step Solution
- Step 1: Write the proportion equation
43,638,178.24 : 65,473,228.88 = 20,306,048.96 : x - Step 2: Convert to fraction form
43,638,178.24/65,473,228.88 = 20,306,048.96/x - Step 3: Cross multiply
43,638,178.24x = 65,473,228.88 × 20,306,048.96 - Step 4: Simplify right side
43,638,178.24x = 1,329,502,591,206,566 - Step 5: Solve for x
x = 1,329,502,591,206,566/43,638,178.24 - Step 6: Final answer
x = 30,466,500.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.