Finding the Fourth Proportional to 251,266,415.37, 346,742,680.81 and 139,754,857.47
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Solution
The fourth proportional to 251,266,415.37, 346,742,680.81 and 139,754,857.47 is: 192,858,937.65
Step by Step Solution
- Step 1: Write the proportion equation
251,266,415.37 : 346,742,680.81 = 139,754,857.47 : x - Step 2: Convert to fraction form
251,266,415.37/346,742,680.81 = 139,754,857.47/x - Step 3: Cross multiply
251,266,415.37x = 346,742,680.81 × 139,754,857.47 - Step 4: Simplify right side
251,266,415.37x = 48,458,973,935,367,256 - Step 5: Solve for x
x = 48,458,973,935,367,256/251,266,415.37 - Step 6: Final answer
x = 192,858,937.65
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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.