Finding the Fourth Proportional to 251,024,487.40, 376,321,078.62 and 87,240,964.84
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Solution
The fourth proportional to 251,024,487.40, 376,321,078.62 and 87,240,964.84 is: 130,786,499.47
Step by Step Solution
- Step 1: Write the proportion equation
251,024,487.40 : 376,321,078.62 = 87,240,964.84 : x - Step 2: Convert to fraction form
251,024,487.40/376,321,078.62 = 87,240,964.84/x - Step 3: Cross multiply
251,024,487.40x = 376,321,078.62 × 87,240,964.84 - Step 4: Simplify right side
251,024,487.40x = 32,830,613,988,438,296 - Step 5: Solve for x
x = 32,830,613,988,438,296/251,024,487.40 - Step 6: Final answer
x = 130,786,499.47
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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.