Finding the Fourth Proportional to 19,873,074.80, 29,809,612.20 and 10,779,528.80
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Solution
The fourth proportional to 19,873,074.80, 29,809,612.20 and 10,779,528.80 is: 16,169,293.20
Step by Step Solution
- Step 1: Write the proportion equation
19,873,074.80 : 29,809,612.20 = 10,779,528.80 : x - Step 2: Convert to fraction form
19,873,074.80/29,809,612.20 = 10,779,528.80/x - Step 3: Cross multiply
19,873,074.80x = 29,809,612.20 × 10,779,528.80 - Step 4: Simplify right side
19,873,074.80x = 321,333,573,226,731.38 - Step 5: Solve for x
x = 321,333,573,226,731.38/19,873,074.80 - Step 6: Final answer
x = 16,169,293.20
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1.5x scale
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.