Finding the Fourth Proportional to 8,477,259.68, 11,729,423.64 and 7,391,793.20
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Solution
The fourth proportional to 8,477,259.68, 11,729,423.64 and 7,391,793.20 is: 10,227,535.45
Step by Step Solution
- Step 1: Write the proportion equation
8,477,259.68 : 11,729,423.64 = 7,391,793.20 : x - Step 2: Convert to fraction form
8,477,259.68/11,729,423.64 = 7,391,793.20/x - Step 3: Cross multiply
8,477,259.68x = 11,729,423.64 × 7,391,793.20 - Step 4: Simplify right side
8,477,259.68x = 86,701,473,902,071.25 - Step 5: Solve for x
x = 86,701,473,902,071.25/8,477,259.68 - Step 6: Final answer
x = 10,227,535.45
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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.