Finding the Fourth Proportional to 47,289,027.83, 70,936,534.29 and 19,990,231.65
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Solution
The fourth proportional to 47,289,027.83, 70,936,534.29 and 19,990,231.65 is: 29,986,612.50
Step by Step Solution
- Step 1: Write the proportion equation
47,289,027.83 : 70,936,534.29 = 19,990,231.65 : x - Step 2: Convert to fraction form
47,289,027.83/70,936,534.29 = 19,990,231.65/x - Step 3: Cross multiply
47,289,027.83x = 70,936,534.29 × 19,990,231.65 - Step 4: Simplify right side
47,289,027.83x = 1,418,037,752,905,268.25 - Step 5: Solve for x
x = 1,418,037,752,905,268.25/47,289,027.83 - Step 6: Final answer
x = 29,986,612.50
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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.