Finding the Fourth Proportional to 239,765,539.07, 330,876,439.86 and 129,757,252.07
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Solution
The fourth proportional to 239,765,539.07, 330,876,439.86 and 129,757,252.07 is: 179,065,005.66
Step by Step Solution
- Step 1: Write the proportion equation
239,765,539.07 : 330,876,439.86 = 129,757,252.07 : x - Step 2: Convert to fraction form
239,765,539.07/330,876,439.86 = 129,757,252.07/x - Step 3: Cross multiply
239,765,539.07x = 330,876,439.86 × 129,757,252.07 - Step 4: Simplify right side
239,765,539.07x = 42,933,617,609,283,832 - Step 5: Solve for x
x = 42,933,617,609,283,832/239,765,539.07 - Step 6: Final answer
x = 179,065,005.66
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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.