Finding the Fourth Proportional to 7,313,838.64, 10,977,834.12 and 3,529,985.20
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Solution
The fourth proportional to 7,313,838.64, 10,977,834.12 and 3,529,985.20 is: 5,298,393.07
Step by Step Solution
- Step 1: Write the proportion equation
7,313,838.64 : 10,977,834.12 = 3,529,985.20 : x - Step 2: Convert to fraction form
7,313,838.64/10,977,834.12 = 3,529,985.20/x - Step 3: Cross multiply
7,313,838.64x = 10,977,834.12 × 3,529,985.20 - Step 4: Simplify right side
7,313,838.64x = 38,751,591,971,655.02 - Step 5: Solve for x
x = 38,751,591,971,655.02/7,313,838.64 - Step 6: Final answer
x = 5,298,393.07
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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.