Finding the Fourth Proportional to 5,138,887.95, 7,705,766.99 and 1,680,177.08
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Solution
The fourth proportional to 5,138,887.95, 7,705,766.99 and 1,680,177.08 is: 2,519,427.01
Step by Step Solution
- Step 1: Write the proportion equation
5,138,887.95 : 7,705,766.99 = 1,680,177.08 : x - Step 2: Convert to fraction form
5,138,887.95/7,705,766.99 = 1,680,177.08/x - Step 3: Cross multiply
5,138,887.95x = 7,705,766.99 × 1,680,177.08 - Step 4: Simplify right side
5,138,887.95x = 12,947,053,103,883.45 - Step 5: Solve for x
x = 12,947,053,103,883.45/5,138,887.95 - Step 6: Final answer
x = 2,519,427.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.