Finding the Fourth Proportional to 251,266,414.87, 346,742,680.12 and 139,754,856.97
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Solution
The fourth proportional to 251,266,414.87, 346,742,680.12 and 139,754,856.97 is: 192,858,936.96
Step by Step Solution
- Step 1: Write the proportion equation
251,266,414.87 : 346,742,680.12 = 139,754,856.97 : x - Step 2: Convert to fraction form
251,266,414.87/346,742,680.12 = 139,754,856.97/x - Step 3: Cross multiply
251,266,414.87x = 346,742,680.12 × 139,754,856.97 - Step 4: Simplify right side
251,266,414.87x = 48,458,973,665,565,064 - Step 5: Solve for x
x = 48,458,973,665,565,064/251,266,414.87 - Step 6: Final answer
x = 192,858,936.96
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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.