Finding the Fourth Proportional to 307,618,712.10, 461,640,644.55 and 221,430,791.70
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Solution
The fourth proportional to 307,618,712.10, 461,640,644.55 and 221,430,791.70 is: 332,299,204.77
Step by Step Solution
- Step 1: Write the proportion equation
307,618,712.10 : 461,640,644.55 = 221,430,791.70 : x - Step 2: Convert to fraction form
307,618,712.10/461,640,644.55 = 221,430,791.70/x - Step 3: Cross multiply
307,618,712.10x = 461,640,644.55 × 221,430,791.70 - Step 4: Simplify right side
307,618,712.10x = 102,221,453,403,604,784 - Step 5: Solve for x
x = 102,221,453,403,604,784/307,618,712.10 - Step 6: Final answer
x = 332,299,204.77
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.