Finding the Fourth Proportional to 313,622,155.68, 432,780,797.85 and 174,389,928.09
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Solution
The fourth proportional to 313,622,155.68, 432,780,797.85 and 174,389,928.09 is: 240,648,215.85
Step by Step Solution
- Step 1: Write the proportion equation
313,622,155.68 : 432,780,797.85 = 174,389,928.09 : x - Step 2: Convert to fraction form
313,622,155.68/432,780,797.85 = 174,389,928.09/x - Step 3: Cross multiply
313,622,155.68x = 432,780,797.85 × 174,389,928.09 - Step 4: Simplify right side
313,622,155.68x = 75,472,612,215,794,336 - Step 5: Solve for x
x = 75,472,612,215,794,336/313,622,155.68 - Step 6: Final answer
x = 240,648,215.85
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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.