Finding the Fourth Proportional to 225,247,833.12, 310,842,009.60 and 122,231,385.12
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Solution
The fourth proportional to 225,247,833.12, 310,842,009.60 and 122,231,385.12 is: 168,679,311.41
Step by Step Solution
- Step 1: Write the proportion equation
225,247,833.12 : 310,842,009.60 = 122,231,385.12 : x - Step 2: Convert to fraction form
225,247,833.12/310,842,009.60 = 122,231,385.12/x - Step 3: Cross multiply
225,247,833.12x = 310,842,009.60 × 122,231,385.12 - Step 4: Simplify right side
225,247,833.12x = 37,994,649,386,892,344 - Step 5: Solve for x
x = 37,994,649,386,892,344/225,247,833.12 - Step 6: Final answer
x = 168,679,311.41
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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.