Finding the Fourth Proportional to 4,993,432.19, 6,890,934.08 and 2,818,431.53
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Solution
The fourth proportional to 4,993,432.19, 6,890,934.08 and 2,818,431.53 is: 3,889,434.19
Step by Step Solution
- Step 1: Write the proportion equation
4,993,432.19 : 6,890,934.08 = 2,818,431.53 : x - Step 2: Convert to fraction form
4,993,432.19/6,890,934.08 = 2,818,431.53/x - Step 3: Cross multiply
4,993,432.19x = 6,890,934.08 × 2,818,431.53 - Step 4: Simplify right side
4,993,432.19x = 19,421,625,854,814.95 - Step 5: Solve for x
x = 19,421,625,854,814.95/4,993,432.19 - Step 6: Final answer
x = 3,889,434.19
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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.