Finding the Fourth Proportional to 21,576,403.18, 32,377,373.68 and 7,939,126.32
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Solution
The fourth proportional to 21,576,403.18, 32,377,373.68 and 7,939,126.32 is: 11,913,387.85
Step by Step Solution
- Step 1: Write the proportion equation
21,576,403.18 : 32,377,373.68 = 7,939,126.32 : x - Step 2: Convert to fraction form
21,576,403.18/32,377,373.68 = 7,939,126.32/x - Step 3: Cross multiply
21,576,403.18x = 32,377,373.68 × 7,939,126.32 - Step 4: Simplify right side
21,576,403.18x = 257,048,059,555,363.25 - Step 5: Solve for x
x = 257,048,059,555,363.25/21,576,403.18 - Step 6: Final answer
x = 11,913,387.85
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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.