Finding the Fourth Proportional to 472,414,912.20, 708,622,368.30 and 349,970,905.80
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Solution
The fourth proportional to 472,414,912.20, 708,622,368.30 and 349,970,905.80 is: 524,956,358.70
Step by Step Solution
- Step 1: Write the proportion equation
472,414,912.20 : 708,622,368.30 = 349,970,905.80 : x - Step 2: Convert to fraction form
472,414,912.20/708,622,368.30 = 349,970,905.80/x - Step 3: Cross multiply
472,414,912.20x = 708,622,368.30 × 349,970,905.80 - Step 4: Simplify right side
472,414,912.20x = 247,997,212,104,092,192 - Step 5: Solve for x
x = 247,997,212,104,092,192/472,414,912.20 - Step 6: Final answer
x = 524,956,358.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.