Finding the Fourth Proportional to 90,173,369.76, 124,439,491.44 and 48,920,262.18
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Solution
The fourth proportional to 90,173,369.76, 124,439,491.44 and 48,920,262.18 is: 67,510,092.65
Step by Step Solution
- Step 1: Write the proportion equation
90,173,369.76 : 124,439,491.44 = 48,920,262.18 : x - Step 2: Convert to fraction form
90,173,369.76/124,439,491.44 = 48,920,262.18/x - Step 3: Cross multiply
90,173,369.76x = 124,439,491.44 × 48,920,262.18 - Step 4: Simplify right side
90,173,369.76x = 6,087,612,546,790,666 - Step 5: Solve for x
x = 6,087,612,546,790,666/90,173,369.76 - Step 6: Final answer
x = 67,510,092.65
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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.