Finding the Fourth Proportional to 28,716,696.51, 39,643,675.05 and 22,175,641.95
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Solution
The fourth proportional to 28,716,696.51, 39,643,675.05 and 22,175,641.95 is: 30,613,686.47
Step by Step Solution
- Step 1: Write the proportion equation
28,716,696.51 : 39,643,675.05 = 22,175,641.95 : x - Step 2: Convert to fraction form
28,716,696.51/39,643,675.05 = 22,175,641.95/x - Step 3: Cross multiply
28,716,696.51x = 39,643,675.05 × 22,175,641.95 - Step 4: Simplify right side
28,716,696.51x = 879,123,943,490,948.25 - Step 5: Solve for x
x = 879,123,943,490,948.25/28,716,696.51 - Step 6: Final answer
x = 30,613,686.47
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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.