Finding the Fourth Proportional to 472,394,363.20, 708,591,544.80 and 355,996,974.40
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Solution
The fourth proportional to 472,394,363.20, 708,591,544.80 and 355,996,974.40 is: 533,995,461.60
Step by Step Solution
- Step 1: Write the proportion equation
472,394,363.20 : 708,591,544.80 = 355,996,974.40 : x - Step 2: Convert to fraction form
472,394,363.20/708,591,544.80 = 355,996,974.40/x - Step 3: Cross multiply
472,394,363.20x = 708,591,544.80 × 355,996,974.40 - Step 4: Simplify right side
472,394,363.20x = 252,256,446,034,222,016 - Step 5: Solve for x
x = 252,256,446,034,222,016/472,394,363.20 - Step 6: Final answer
x = 533,995,461.60
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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.