Finding the Fourth Proportional to 7,791,910.63, 11,690,490.35 and 4,909,930.63
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Solution
The fourth proportional to 7,791,910.63, 11,690,490.35 and 4,909,930.63 is: 7,366,549.67
Step by Step Solution
- Step 1: Write the proportion equation
7,791,910.63 : 11,690,490.35 = 4,909,930.63 : x - Step 2: Convert to fraction form
7,791,910.63/11,690,490.35 = 4,909,930.63/x - Step 3: Cross multiply
7,791,910.63x = 11,690,490.35 × 4,909,930.63 - Step 4: Simplify right side
7,791,910.63x = 57,399,496,649,184.41 - Step 5: Solve for x
x = 57,399,496,649,184.41/7,791,910.63 - Step 6: Final answer
x = 7,366,549.67
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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.