Finding the Fourth Proportional to 6,319,216.74, 8,720,499.84 and 3,418,606.95
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Solution
The fourth proportional to 6,319,216.74, 8,720,499.84 and 3,418,606.95 is: 4,717,667.17
Step by Step Solution
- Step 1: Write the proportion equation
6,319,216.74 : 8,720,499.84 = 3,418,606.95 : x - Step 2: Convert to fraction form
6,319,216.74/8,720,499.84 = 3,418,606.95/x - Step 3: Cross multiply
6,319,216.74x = 8,720,499.84 × 3,418,606.95 - Step 4: Simplify right side
6,319,216.74x = 29,811,961,360,497.89 - Step 5: Solve for x
x = 29,811,961,360,497.89/6,319,216.74 - Step 6: Final answer
x = 4,717,667.17
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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.