Finding the Fourth Proportional to 7,102,715.91, 9,795,211.20 and 4,654,437.75
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Solution
The fourth proportional to 7,102,715.91, 9,795,211.20 and 4,654,437.75 is: 6,418,840.53
Step by Step Solution
- Step 1: Write the proportion equation
7,102,715.91 : 9,795,211.20 = 4,654,437.75 : x - Step 2: Convert to fraction form
7,102,715.91/9,795,211.20 = 4,654,437.75/x - Step 3: Cross multiply
7,102,715.91x = 9,795,211.20 × 4,654,437.75 - Step 4: Simplify right side
7,102,715.91x = 45,591,200,778,502.80 - Step 5: Solve for x
x = 45,591,200,778,502.80/7,102,715.91 - Step 6: Final answer
x = 6,418,840.53
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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.