Finding the Fourth Proportional to 61,193,289.68, 91,796,659.55 and 20,237,810.28
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Solution
The fourth proportional to 61,193,289.68, 91,796,659.55 and 20,237,810.28 is: 30,358,939.52
Step by Step Solution
- Step 1: Write the proportion equation
61,193,289.68 : 91,796,659.55 = 20,237,810.28 : x - Step 2: Convert to fraction form
61,193,289.68/91,796,659.55 = 20,237,810.28/x - Step 3: Cross multiply
61,193,289.68x = 91,796,659.55 × 20,237,810.28 - Step 4: Simplify right side
61,193,289.68x = 1,857,763,380,209,461.25 - Step 5: Solve for x
x = 1,857,763,380,209,461.25/61,193,289.68 - Step 6: Final answer
x = 30,358,939.52
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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.