Finding the Fourth Proportional to 8,130,239.68, 12,195,360.24 and 2,146,659.52
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Solution
The fourth proportional to 8,130,239.68, 12,195,360.24 and 2,146,659.52 is: 3,219,989.47
Step by Step Solution
- Step 1: Write the proportion equation
8,130,239.68 : 12,195,360.24 = 2,146,659.52 : x - Step 2: Convert to fraction form
8,130,239.68/12,195,360.24 = 2,146,659.52/x - Step 3: Cross multiply
8,130,239.68x = 12,195,360.24 × 2,146,659.52 - Step 4: Simplify right side
8,130,239.68x = 26,179,286,159,025.48 - Step 5: Solve for x
x = 26,179,286,159,025.48/8,130,239.68 - Step 6: Final answer
x = 3,219,989.47
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1.5x scale
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.