Finding the Fourth Proportional to 8,720,037.92, 12,021,178.19 and 6,133,691.72
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Solution
The fourth proportional to 8,720,037.92, 12,021,178.19 and 6,133,691.72 is: 8,455,720.23
Step by Step Solution
- Step 1: Write the proportion equation
8,720,037.92 : 12,021,178.19 = 6,133,691.72 : x - Step 2: Convert to fraction form
8,720,037.92/12,021,178.19 = 6,133,691.72/x - Step 3: Cross multiply
8,720,037.92x = 12,021,178.19 × 6,133,691.72 - Step 4: Simplify right side
8,720,037.92x = 73,734,201,037,873.23 - Step 5: Solve for x
x = 73,734,201,037,873.23/8,720,037.92 - Step 6: Final answer
x = 8,455,720.23
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1.5x scale
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.