Finding the Fourth Proportional to 4,918,695.76, 6,787,812.20 and 2,743,379.82
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Solution
The fourth proportional to 4,918,695.76, 6,787,812.20 and 2,743,379.82 is: 3,785,870.87
Step by Step Solution
- Step 1: Write the proportion equation
4,918,695.76 : 6,787,812.20 = 2,743,379.82 : x - Step 2: Convert to fraction form
4,918,695.76/6,787,812.20 = 2,743,379.82/x - Step 3: Cross multiply
4,918,695.76x = 6,787,812.20 × 2,743,379.82 - Step 4: Simplify right side
4,918,695.76x = 18,621,547,011,429.80 - Step 5: Solve for x
x = 18,621,547,011,429.80/4,918,695.76 - Step 6: Final answer
x = 3,785,870.87
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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.