Finding the Fourth Proportional to 28,716,695.51, 39,643,673.67 and 22,175,640.95
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Solution
The fourth proportional to 28,716,695.51, 39,643,673.67 and 22,175,640.95 is: 30,613,685.09
Step by Step Solution
- Step 1: Write the proportion equation
28,716,695.51 : 39,643,673.67 = 22,175,640.95 : x - Step 2: Convert to fraction form
28,716,695.51/39,643,673.67 = 22,175,640.95/x - Step 3: Cross multiply
28,716,695.51x = 39,643,673.67 × 22,175,640.95 - Step 4: Simplify right side
28,716,695.51x = 879,123,873,046,670.50 - Step 5: Solve for x
x = 879,123,873,046,670.50/28,716,695.51 - Step 6: Final answer
x = 30,613,685.09
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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.