Finding the Fourth Proportional to 21,446,140.40, 29,595,534.99 and 12,280,554.62
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Solution
The fourth proportional to 21,446,140.40, 29,595,534.99 and 12,280,554.62 is: 16,947,085.92
Step by Step Solution
- Step 1: Write the proportion equation
21,446,140.40 : 29,595,534.99 = 12,280,554.62 : x - Step 2: Convert to fraction form
21,446,140.40/29,595,534.99 = 12,280,554.62/x - Step 3: Cross multiply
21,446,140.40x = 29,595,534.99 × 12,280,554.62 - Step 4: Simplify right side
21,446,140.40x = 363,449,583,952,816.12 - Step 5: Solve for x
x = 363,449,583,952,816.12/21,446,140.40 - Step 6: Final answer
x = 16,947,085.92
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1.5x scale
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.