Finding the Fourth Proportional to 6,319,209.12, 8,720,489.32 and 3,418,599.32
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Solution
The fourth proportional to 6,319,209.12, 8,720,489.32 and 3,418,599.32 is: 4,717,656.64
Step by Step Solution
- Step 1: Write the proportion equation
6,319,209.12 : 8,720,489.32 = 3,418,599.32 : x - Step 2: Convert to fraction form
6,319,209.12/8,720,489.32 = 3,418,599.32/x - Step 3: Cross multiply
6,319,209.12x = 8,720,489.32 × 3,418,599.32 - Step 4: Simplify right side
6,319,209.12x = 29,811,858,859,419.26 - Step 5: Solve for x
x = 29,811,858,859,419.26/6,319,209.12 - Step 6: Final answer
x = 4,717,656.64
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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.