Finding the Fourth Proportional to 19,936,834.40, 29,905,248.56 and 4,790,765.92
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Solution
The fourth proportional to 19,936,834.40, 29,905,248.56 and 4,790,765.92 is: 7,186,148.15
Step by Step Solution
- Step 1: Write the proportion equation
19,936,834.40 : 29,905,248.56 = 4,790,765.92 : x - Step 2: Convert to fraction form
19,936,834.40/29,905,248.56 = 4,790,765.92/x - Step 3: Cross multiply
19,936,834.40x = 29,905,248.56 × 4,790,765.92 - Step 4: Simplify right side
19,936,834.40x = 143,269,045,630,377.06 - Step 5: Solve for x
x = 143,269,045,630,377.06/19,936,834.40 - Step 6: Final answer
x = 7,186,148.15
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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.