Finding the Fourth Proportional to 239,765,173.65, 330,875,936.51 and 129,756,886.65
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Solution
The fourth proportional to 239,765,173.65, 330,875,936.51 and 129,756,886.65 is: 179,064,501.88
Step by Step Solution
- Step 1: Write the proportion equation
239,765,173.65 : 330,875,936.51 = 129,756,886.65 : x - Step 2: Convert to fraction form
239,765,173.65/330,875,936.51 = 129,756,886.65/x - Step 3: Cross multiply
239,765,173.65x = 330,875,936.51 × 129,756,886.65 - Step 4: Simplify right side
239,765,173.65x = 42,933,431,388,291,880 - Step 5: Solve for x
x = 42,933,431,388,291,880/239,765,173.65 - Step 6: Final answer
x = 179,064,501.88
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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.