Finding the Fourth Proportional to 21,275,694.24, 31,913,541.12 and 5,319,342.24
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Solution
The fourth proportional to 21,275,694.24, 31,913,541.12 and 5,319,342.24 is: 7,979,013.30
Step by Step Solution
- Step 1: Write the proportion equation
21,275,694.24 : 31,913,541.12 = 5,319,342.24 : x - Step 2: Convert to fraction form
21,275,694.24/31,913,541.12 = 5,319,342.24/x - Step 3: Cross multiply
21,275,694.24x = 31,913,541.12 × 5,319,342.24 - Step 4: Simplify right side
21,275,694.24x = 169,759,047,307,592.91 - Step 5: Solve for x
x = 169,759,047,307,592.91/21,275,694.24 - Step 6: Final answer
x = 7,979,013.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.