Finding the Fourth Proportional to 51,686,801.73, 71,328,264.75 and 28,482,759.09
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Solution
The fourth proportional to 51,686,801.73, 71,328,264.75 and 28,482,759.09 is: 39,306,471.15
Step by Step Solution
- Step 1: Write the proportion equation
51,686,801.73 : 71,328,264.75 = 28,482,759.09 : x - Step 2: Convert to fraction form
51,686,801.73/71,328,264.75 = 28,482,759.09/x - Step 3: Cross multiply
51,686,801.73x = 71,328,264.75 × 28,482,759.09 - Step 4: Simplify right side
51,686,801.73x = 2,031,625,781,181,989 - Step 5: Solve for x
x = 2,031,625,781,181,989/51,686,801.73 - Step 6: Final answer
x = 39,306,471.15
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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.