Finding the Fourth Proportional to 6,121,305.68, 8,447,472.79 and 3,507,758.06
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Solution
The fourth proportional to 6,121,305.68, 8,447,472.79 and 3,507,758.06 is: 4,840,746.78
Step by Step Solution
- Step 1: Write the proportion equation
6,121,305.68 : 8,447,472.79 = 3,507,758.06 : x - Step 2: Convert to fraction form
6,121,305.68/8,447,472.79 = 3,507,758.06/x - Step 3: Cross multiply
6,121,305.68x = 8,447,472.79 × 3,507,758.06 - Step 4: Simplify right side
6,121,305.68x = 29,631,690,714,746.43 - Step 5: Solve for x
x = 29,631,690,714,746.43/6,121,305.68 - Step 6: Final answer
x = 4,840,746.78
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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.