Finding the Fourth Proportional to 6,316,836.21, 8,717,318.64 and 3,563,515.17
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Solution
The fourth proportional to 6,316,836.21, 8,717,318.64 and 3,563,515.17 is: 4,917,698.70
Step by Step Solution
- Step 1: Write the proportion equation
6,316,836.21 : 8,717,318.64 = 3,563,515.17 : x - Step 2: Convert to fraction form
6,316,836.21/8,717,318.64 = 3,563,515.17/x - Step 3: Cross multiply
6,316,836.21x = 8,717,318.64 × 3,563,515.17 - Step 4: Simplify right side
6,316,836.21x = 31,064,297,215,363.77 - Step 5: Solve for x
x = 31,064,297,215,363.77/6,316,836.21 - Step 6: Final answer
x = 4,917,698.70
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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.