Finding the Fourth Proportional to 5,349,746.13, 7,382,648.79 and 3,057,956.03
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Solution
The fourth proportional to 5,349,746.13, 7,382,648.79 and 3,057,956.03 is: 4,219,978.82
Step by Step Solution
- Step 1: Write the proportion equation
5,349,746.13 : 7,382,648.79 = 3,057,956.03 : x - Step 2: Convert to fraction form
5,349,746.13/7,382,648.79 = 3,057,956.03/x - Step 3: Cross multiply
5,349,746.13x = 7,382,648.79 × 3,057,956.03 - Step 4: Simplify right side
5,349,746.13x = 22,575,815,384,752.70 - Step 5: Solve for x
x = 22,575,815,384,752.70/5,349,746.13 - Step 6: Final answer
x = 4,219,978.82
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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.