Finding the Fourth Proportional to 217,187,647,012.15, 299,714,252,768.24 and 125,740,053,722.96
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Solution
The fourth proportional to 217,187,647,012.15, 299,714,252,768.24 and 125,740,053,722.96 is: 173,518,553,025.75
Step by Step Solution
- Step 1: Write the proportion equation
217,187,647,012.15 : 299,714,252,768.24 = 125,740,053,722.96 : x - Step 2: Convert to fraction form
217,187,647,012.15/299,714,252,768.24 = 125,740,053,722.96/x - Step 3: Cross multiply
217,187,647,012.15x = 299,714,252,768.24 × 125,740,053,722.96 - Step 4: Simplify right side
217,187,647,012.15x = 37,686,086,244,615,311,065,088 - Step 5: Solve for x
x = 37,686,086,244,615,311,065,088/217,187,647,012.15 - Step 6: Final answer
x = 173,518,553,025.75
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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.