Finding the Fourth Proportional to 4,789,948.98, 6,609,965.13 and 2,855,212.14
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Solution
The fourth proportional to 4,789,948.98, 6,609,965.13 and 2,855,212.14 is: 3,940,094.72
Step by Step Solution
- Step 1: Write the proportion equation
4,789,948.98 : 6,609,965.13 = 2,855,212.14 : x - Step 2: Convert to fraction form
4,789,948.98/6,609,965.13 = 2,855,212.14/x - Step 3: Cross multiply
4,789,948.98x = 6,609,965.13 × 2,855,212.14 - Step 4: Simplify right side
4,789,948.98x = 18,872,852,684,152.68 - Step 5: Solve for x
x = 18,872,852,684,152.68/4,789,948.98 - Step 6: Final answer
x = 3,940,094.72
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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.