Finding the Fourth Proportional to 101,143,062.81, 139,577,425.97 and 54,733,316.58
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Solution
The fourth proportional to 101,143,062.81, 139,577,425.97 and 54,733,316.58 is: 75,531,976.49
Step by Step Solution
- Step 1: Write the proportion equation
101,143,062.81 : 139,577,425.97 = 54,733,316.58 : x - Step 2: Convert to fraction form
101,143,062.81/139,577,425.97 = 54,733,316.58/x - Step 3: Cross multiply
101,143,062.81x = 139,577,425.97 × 54,733,316.58 - Step 4: Simplify right side
101,143,062.81x = 7,639,535,442,763,857 - Step 5: Solve for x
x = 7,639,535,442,763,857/101,143,062.81 - Step 6: Final answer
x = 75,531,976.49
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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.