Finding the Fourth Proportional to 279,614,626.77, 386,033,707.23 and 248,589,101.19
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Solution
The fourth proportional to 279,614,626.77, 386,033,707.23 and 248,589,101.19 is: 343,200,115.88
Step by Step Solution
- Step 1: Write the proportion equation
279,614,626.77 : 386,033,707.23 = 248,589,101.19 : x - Step 2: Convert to fraction form
279,614,626.77/386,033,707.23 = 248,589,101.19/x - Step 3: Cross multiply
279,614,626.77x = 386,033,707.23 × 248,589,101.19 - Step 4: Simplify right side
279,614,626.77x = 95,963,772,309,349,312 - Step 5: Solve for x
x = 95,963,772,309,349,312/279,614,626.77 - Step 6: Final answer
x = 343,200,115.88
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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.