Finding the Fourth Proportional to 5,154,464.88, 7,112,746.71 and 2,979,148.92
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Solution
The fourth proportional to 5,154,464.88, 7,112,746.71 and 2,979,148.92 is: 4,110,985.75
Step by Step Solution
- Step 1: Write the proportion equation
5,154,464.88 : 7,112,746.71 = 2,979,148.92 : x - Step 2: Convert to fraction form
5,154,464.88/7,112,746.71 = 2,979,148.92/x - Step 3: Cross multiply
5,154,464.88x = 7,112,746.71 × 2,979,148.92 - Step 4: Simplify right side
5,154,464.88x = 21,189,931,679,330.05 - Step 5: Solve for x
x = 21,189,931,679,330.05/5,154,464.88 - Step 6: Final answer
x = 4,110,985.75
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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.