Finding the Fourth Proportional to 626,555,028.87, 864,652,822.16 and 344,297,542.73
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Solution
The fourth proportional to 626,555,028.87, 864,652,822.16 and 344,297,542.73 is: 475,134,390.85
Step by Step Solution
- Step 1: Write the proportion equation
626,555,028.87 : 864,652,822.16 = 344,297,542.73 : x - Step 2: Convert to fraction form
626,555,028.87/864,652,822.16 = 344,297,542.73/x - Step 3: Cross multiply
626,555,028.87x = 864,652,822.16 × 344,297,542.73 - Step 4: Simplify right side
626,555,028.87x = 297,697,841,978,202,944 - Step 5: Solve for x
x = 297,697,841,978,202,944/626,555,028.87 - Step 6: Final answer
x = 475,134,390.85
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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.