Finding the Fourth Proportional to 7,186,644.80, 10,779,967.20 and 4,919,163.20
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Solution
The fourth proportional to 7,186,644.80, 10,779,967.20 and 4,919,163.20 is: 7,378,744.80
Step by Step Solution
- Step 1: Write the proportion equation
7,186,644.80 : 10,779,967.20 = 4,919,163.20 : x - Step 2: Convert to fraction form
7,186,644.80/10,779,967.20 = 4,919,163.20/x - Step 3: Cross multiply
7,186,644.80x = 10,779,967.20 × 4,919,163.20 - Step 4: Simplify right side
7,186,644.80x = 53,028,417,947,447.04 - Step 5: Solve for x
x = 53,028,417,947,447.04/7,186,644.80 - Step 6: Final answer
x = 7,378,744.80
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Double scale
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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.