Finding the Fourth Proportional to 10,948,609.98, 15,108,990.21 and 6,303,305.34
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Solution
The fourth proportional to 10,948,609.98, 15,108,990.21 and 6,303,305.34 is: 8,698,508.66
Step by Step Solution
- Step 1: Write the proportion equation
10,948,609.98 : 15,108,990.21 = 6,303,305.34 : x - Step 2: Convert to fraction form
10,948,609.98/15,108,990.21 = 6,303,305.34/x - Step 3: Cross multiply
10,948,609.98x = 15,108,990.21 × 6,303,305.34 - Step 4: Simplify right side
10,948,609.98x = 95,236,578,672,700.72 - Step 5: Solve for x
x = 95,236,578,672,700.72/10,948,609.98 - Step 6: Final answer
x = 8,698,508.66
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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.