Finding the Fourth Proportional to 115,479,152.88, 159,381,764.28 and 69,074,512.08
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Solution
The fourth proportional to 115,479,152.88, 159,381,764.28 and 69,074,512.08 is: 95,335,108.78
Step by Step Solution
- Step 1: Write the proportion equation
115,479,152.88 : 159,381,764.28 = 69,074,512.08 : x - Step 2: Convert to fraction form
115,479,152.88/159,381,764.28 = 69,074,512.08/x - Step 3: Cross multiply
115,479,152.88x = 159,381,764.28 × 69,074,512.08 - Step 4: Simplify right side
115,479,152.88x = 11,009,217,602,090,572 - Step 5: Solve for x
x = 11,009,217,602,090,572/115,479,152.88 - Step 6: Final answer
x = 95,335,108.78
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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.