Finding the Fourth Proportional to 99,240,788.88, 136,932,220.08 and 57,979,709.28
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Solution
The fourth proportional to 99,240,788.88, 136,932,220.08 and 57,979,709.28 is: 80,000,274.09
Step by Step Solution
- Step 1: Write the proportion equation
99,240,788.88 : 136,932,220.08 = 57,979,709.28 : x - Step 2: Convert to fraction form
99,240,788.88/136,932,220.08 = 57,979,709.28/x - Step 3: Cross multiply
99,240,788.88x = 136,932,220.08 × 57,979,709.28 - Step 4: Simplify right side
99,240,788.88x = 7,939,290,311,303,379 - Step 5: Solve for x
x = 7,939,290,311,303,379/99,240,788.88 - Step 6: Final answer
x = 80,000,274.09
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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.