Finding the Fourth Proportional to 5,639,187.42, 7,781,869.26 and 3,060,812.70
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Solution
The fourth proportional to 5,639,187.42, 7,781,869.26 and 3,060,812.70 is: 4,223,807.88
Step by Step Solution
- Step 1: Write the proportion equation
5,639,187.42 : 7,781,869.26 = 3,060,812.70 : x - Step 2: Convert to fraction form
5,639,187.42/7,781,869.26 = 3,060,812.70/x - Step 3: Cross multiply
5,639,187.42x = 7,781,869.26 × 3,060,812.70 - Step 4: Simplify right side
5,639,187.42x = 23,818,844,260,747.60 - Step 5: Solve for x
x = 23,818,844,260,747.60/5,639,187.42 - Step 6: Final answer
x = 4,223,807.88
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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.