Finding the Fourth Proportional to 5,147,189.84, 7,721,970.84 and 1,781,396.84
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Solution
The fourth proportional to 5,147,189.84, 7,721,970.84 and 1,781,396.84 is: 2,672,505.75
Step by Step Solution
- Step 1: Write the proportion equation
5,147,189.84 : 7,721,970.84 = 1,781,396.84 : x - Step 2: Convert to fraction form
5,147,189.84/7,721,970.84 = 1,781,396.84/x - Step 3: Cross multiply
5,147,189.84x = 7,721,970.84 × 1,781,396.84 - Step 4: Simplify right side
5,147,189.84x = 13,755,894,452,948.15 - Step 5: Solve for x
x = 13,755,894,452,948.15/5,147,189.84 - Step 6: Final answer
x = 2,672,505.75
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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.