Finding the Fourth Proportional to 5,638,911.13, 7,781,489.13 and 3,060,536.55
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Solution
The fourth proportional to 5,638,911.13, 7,781,489.13 and 3,060,536.55 is: 4,223,427.42
Step by Step Solution
- Step 1: Write the proportion equation
5,638,911.13 : 7,781,489.13 = 3,060,536.55 : x - Step 2: Convert to fraction form
5,638,911.13/7,781,489.13 = 3,060,536.55/x - Step 3: Cross multiply
5,638,911.13x = 7,781,489.13 × 3,060,536.55 - Step 4: Simplify right side
5,638,911.13x = 23,815,531,895,792.70 - Step 5: Solve for x
x = 23,815,531,895,792.70/5,638,911.13 - Step 6: Final answer
x = 4,223,427.42
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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.