Finding the Fourth Proportional to 13,435,434.80, 20,149,247.88 and 5,236,252.19
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Solution
The fourth proportional to 13,435,434.80, 20,149,247.88 and 5,236,252.19 is: 7,852,856.64
Step by Step Solution
- Step 1: Write the proportion equation
13,435,434.80 : 20,149,247.88 = 5,236,252.19 : x - Step 2: Convert to fraction form
13,435,434.80/20,149,247.88 = 5,236,252.19/x - Step 3: Cross multiply
13,435,434.80x = 20,149,247.88 × 5,236,252.19 - Step 4: Simplify right side
13,435,434.80x = 105,506,543,313,316.28 - Step 5: Solve for x
x = 105,506,543,313,316.28/13,435,434.80 - Step 6: Final answer
x = 7,852,856.64
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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.