Finding the Fourth Proportional to 10,369,826.70, 15,554,740.05 and 6,786,645.90
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Solution
The fourth proportional to 10,369,826.70, 15,554,740.05 and 6,786,645.90 is: 10,179,968.85
Step by Step Solution
- Step 1: Write the proportion equation
10,369,826.70 : 15,554,740.05 = 6,786,645.90 : x - Step 2: Convert to fraction form
10,369,826.70/15,554,740.05 = 6,786,645.90/x - Step 3: Cross multiply
10,369,826.70x = 15,554,740.05 × 6,786,645.90 - Step 4: Simplify right side
10,369,826.70x = 105,564,512,785,898.31 - Step 5: Solve for x
x = 105,564,512,785,898.31/10,369,826.70 - Step 6: Final answer
x = 10,179,968.85
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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.