Finding the Fourth Proportional to 21,498,423.85, 32,261,509.19 and 7,850,427.67
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Solution
The fourth proportional to 21,498,423.85, 32,261,509.19 and 7,850,427.67 is: 11,780,707.56
Step by Step Solution
- Step 1: Write the proportion equation
21,498,423.85 : 32,261,509.19 = 7,850,427.67 : x - Step 2: Convert to fraction form
21,498,423.85/32,261,509.19 = 7,850,427.67/x - Step 3: Cross multiply
21,498,423.85x = 32,261,509.19 × 7,850,427.67 - Step 4: Simplify right side
21,498,423.85x = 253,266,644,421,135.28 - Step 5: Solve for x
x = 253,266,644,421,135.28/21,498,423.85 - Step 6: Final answer
x = 11,780,707.56
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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.