Finding the Fourth Proportional to 757,399,705.74, 1,045,201,418.69 and 422,877,353.99
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Solution
The fourth proportional to 757,399,705.74, 1,045,201,418.69 and 422,877,353.99 is: 583,565,067.38
Step by Step Solution
- Step 1: Write the proportion equation
757,399,705.74 : 1,045,201,418.69 = 422,877,353.99 : x - Step 2: Convert to fraction form
757,399,705.74/1,045,201,418.69 = 422,877,353.99/x - Step 3: Cross multiply
757,399,705.74x = 1,045,201,418.69 × 422,877,353.99 - Step 4: Simplify right side
757,399,705.74x = 441,992,010,314,880,960 - Step 5: Solve for x
x = 441,992,010,314,880,960/757,399,705.74 - Step 6: Final answer
x = 583,565,067.38
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1.5x scale
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.