Finding the Fourth Proportional to 638,682,557.04, 958,017,448.84 and 201,983,315.58
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Solution
The fourth proportional to 638,682,557.04, 958,017,448.84 and 201,983,315.58 is: 302,972,953.57
Step by Step Solution
- Step 1: Write the proportion equation
638,682,557.04 : 958,017,448.84 = 201,983,315.58 : x - Step 2: Convert to fraction form
638,682,557.04/958,017,448.84 = 201,983,315.58/x - Step 3: Cross multiply
638,682,557.04x = 958,017,448.84 × 201,983,315.58 - Step 4: Simplify right side
638,682,557.04x = 193,503,540,699,509,472 - Step 5: Solve for x
x = 193,503,540,699,509,472/638,682,557.04 - Step 6: Final answer
x = 302,972,953.57
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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.