Finding the Fourth Proportional to 5,638,740.89, 7,781,469.93 and 3,060,421.99
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Solution
The fourth proportional to 5,638,740.89, 7,781,469.93 and 3,060,421.99 is: 4,223,386.42
Step by Step Solution
- Step 1: Write the proportion equation
5,638,740.89 : 7,781,469.93 = 3,060,421.99 : x - Step 2: Convert to fraction form
5,638,740.89/7,781,469.93 = 3,060,421.99/x - Step 3: Cross multiply
5,638,740.89x = 7,781,469.93 × 3,060,421.99 - Step 4: Simplify right side
5,638,740.89x = 23,814,581,668,842.08 - Step 5: Solve for x
x = 23,814,581,668,842.08/5,638,740.89 - Step 6: Final answer
x = 4,223,386.42
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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.