Finding the Fourth Proportional to 7,242,595.20, 10,863,892.80 and 2,193,905.70
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Solution
The fourth proportional to 7,242,595.20, 10,863,892.80 and 2,193,905.70 is: 3,290,858.55
Step by Step Solution
- Step 1: Write the proportion equation
7,242,595.20 : 10,863,892.80 = 2,193,905.70 : x - Step 2: Convert to fraction form
7,242,595.20/10,863,892.80 = 2,193,905.70/x - Step 3: Cross multiply
7,242,595.20x = 10,863,892.80 × 2,193,905.70 - Step 4: Simplify right side
7,242,595.20x = 23,834,356,338,108.96 - Step 5: Solve for x
x = 23,834,356,338,108.96/7,242,595.20 - Step 6: Final answer
x = 3,290,858.55
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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.