Finding the Fourth Proportional to 827,542,424.80, 1,241,139,454.80 and 418,213,784.80
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Solution
The fourth proportional to 827,542,424.80, 1,241,139,454.80 and 418,213,784.80 is: 627,232,650.92
Step by Step Solution
- Step 1: Write the proportion equation
827,542,424.80 : 1,241,139,454.80 = 418,213,784.80 : x - Step 2: Convert to fraction form
827,542,424.80/1,241,139,454.80 = 418,213,784.80/x - Step 3: Cross multiply
827,542,424.80x = 1,241,139,454.80 × 418,213,784.80 - Step 4: Simplify right side
827,542,424.80x = 519,061,628,856,516,544 - Step 5: Solve for x
x = 519,061,628,856,516,544/827,542,424.80 - Step 6: Final answer
x = 627,232,650.92
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1.5x scale
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.