Finding the Fourth Proportional to 330,725,382.32, 456,444,487.68 and 189,651,810.08
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Solution
The fourth proportional to 330,725,382.32, 456,444,487.68 and 189,651,810.08 is: 261,744,419.74
Step by Step Solution
- Step 1: Write the proportion equation
330,725,382.32 : 456,444,487.68 = 189,651,810.08 : x - Step 2: Convert to fraction form
330,725,382.32/456,444,487.68 = 189,651,810.08/x - Step 3: Cross multiply
330,725,382.32x = 456,444,487.68 × 189,651,810.08 - Step 4: Simplify right side
330,725,382.32x = 86,565,523,289,550,272 - Step 5: Solve for x
x = 86,565,523,289,550,272/330,725,382.32 - Step 6: Final answer
x = 261,744,419.74
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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.