Finding the Fourth Proportional to 5,378,448.01, 7,422,069.74 and 2,931,009.12
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Solution
The fourth proportional to 5,378,448.01, 7,422,069.74 and 2,931,009.12 is: 4,044,689.85
Step by Step Solution
- Step 1: Write the proportion equation
5,378,448.01 : 7,422,069.74 = 2,931,009.12 : x - Step 2: Convert to fraction form
5,378,448.01/7,422,069.74 = 2,931,009.12/x - Step 3: Cross multiply
5,378,448.01x = 7,422,069.74 × 2,931,009.12 - Step 4: Simplify right side
5,378,448.01x = 21,754,154,067,669.57 - Step 5: Solve for x
x = 21,754,154,067,669.57/5,378,448.01 - Step 6: Final answer
x = 4,044,689.85
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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.