Finding the Fourth Proportional to 6,519,786.18, 8,996,854.84 and 3,618,948.70
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Solution
The fourth proportional to 6,519,786.18, 8,996,854.84 and 3,618,948.70 is: 4,993,899.37
Step by Step Solution
- Step 1: Write the proportion equation
6,519,786.18 : 8,996,854.84 = 3,618,948.70 : x - Step 2: Convert to fraction form
6,519,786.18/8,996,854.84 = 3,618,948.70/x - Step 3: Cross multiply
6,519,786.18x = 8,996,854.84 × 3,618,948.70 - Step 4: Simplify right side
6,519,786.18x = 32,559,156,127,306.71 - Step 5: Solve for x
x = 32,559,156,127,306.71/6,519,786.18 - Step 6: Final answer
x = 4,993,899.37
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1.5x scale
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.