Finding the Fourth Proportional to 731,591,849.99, 1,009,597,752.77 and 397,064,377.58
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Solution
The fourth proportional to 731,591,849.99, 1,009,597,752.77 and 397,064,377.58 is: 547,949,383.67
Step by Step Solution
- Step 1: Write the proportion equation
731,591,849.99 : 1,009,597,752.77 = 397,064,377.58 : x - Step 2: Convert to fraction form
731,591,849.99/1,009,597,752.77 = 397,064,377.58/x - Step 3: Cross multiply
731,591,849.99x = 1,009,597,752.77 × 397,064,377.58 - Step 4: Simplify right side
731,591,849.99x = 400,875,303,302,753,472 - Step 5: Solve for x
x = 400,875,303,302,753,472/731,591,849.99 - Step 6: Final answer
x = 547,949,383.67
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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.