Finding the Fourth Proportional to 820,896,135.64, 1,132,837,277.94 and 444,555,644.74
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Solution
The fourth proportional to 820,896,135.64, 1,132,837,277.94 and 444,555,644.74 is: 613,487,120.50
Step by Step Solution
- Step 1: Write the proportion equation
820,896,135.64 : 1,132,837,277.94 = 444,555,644.74 : x - Step 2: Convert to fraction form
820,896,135.64/1,132,837,277.94 = 444,555,644.74/x - Step 3: Cross multiply
820,896,135.64x = 1,132,837,277.94 × 444,555,644.74 - Step 4: Simplify right side
820,896,135.64x = 503,609,206,480,123,328 - Step 5: Solve for x
x = 503,609,206,480,123,328/820,896,135.64 - Step 6: Final answer
x = 613,487,120.50
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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.