Finding the Fourth Proportional to 103,524,082.80, 155,286,124.20 and 79,636,210.80
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Solution
The fourth proportional to 103,524,082.80, 155,286,124.20 and 79,636,210.80 is: 119,454,316.20
Step by Step Solution
- Step 1: Write the proportion equation
103,524,082.80 : 155,286,124.20 = 79,636,210.80 : x - Step 2: Convert to fraction form
103,524,082.80/155,286,124.20 = 79,636,210.80/x - Step 3: Cross multiply
103,524,082.80x = 155,286,124.20 × 79,636,210.80 - Step 4: Simplify right side
103,524,082.80x = 12,366,398,521,106,180 - Step 5: Solve for x
x = 12,366,398,521,106,180/103,524,082.80 - Step 6: Final answer
x = 119,454,316.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.