Finding the Fourth Proportional to 486,197,106.77, 670,285,215.46 and 307,491,926.68
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Solution
The fourth proportional to 486,197,106.77, 670,285,215.46 and 307,491,926.68 is: 423,917,151.00
Step by Step Solution
- Step 1: Write the proportion equation
486,197,106.77 : 670,285,215.46 = 307,491,926.68 : x - Step 2: Convert to fraction form
486,197,106.77/670,285,215.46 = 307,491,926.68/x - Step 3: Cross multiply
486,197,106.77x = 670,285,215.46 × 307,491,926.68 - Step 4: Simplify right side
486,197,106.77x = 206,107,292,327,275,552 - Step 5: Solve for x
x = 206,107,292,327,275,552/486,197,106.77 - Step 6: Final answer
x = 423,917,151.00
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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.