Finding the Fourth Proportional to 3,818,965.54, 5,270,209.86 and 2,100,097.84
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Solution
The fourth proportional to 3,818,965.54, 5,270,209.86 and 2,100,097.84 is: 2,898,155.59
Step by Step Solution
- Step 1: Write the proportion equation
3,818,965.54 : 5,270,209.86 = 2,100,097.84 : x - Step 2: Convert to fraction form
3,818,965.54/5,270,209.86 = 2,100,097.84/x - Step 3: Cross multiply
3,818,965.54x = 5,270,209.86 × 2,100,097.84 - Step 4: Simplify right side
3,818,965.54x = 11,067,956,343,332.70 - Step 5: Solve for x
x = 11,067,956,343,332.70/3,818,965.54 - Step 6: Final answer
x = 2,898,155.59
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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.