Finding the Fourth Proportional to 94,120,895.52, 129,902,239.35 and 78,415,014.86
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Solution
The fourth proportional to 94,120,895.52, 129,902,239.35 and 78,415,014.86 is: 108,225,553.66
Step by Step Solution
- Step 1: Write the proportion equation
94,120,895.52 : 129,902,239.35 = 78,415,014.86 : x - Step 2: Convert to fraction form
94,120,895.52/129,902,239.35 = 78,415,014.86/x - Step 3: Cross multiply
94,120,895.52x = 129,902,239.35 × 78,415,014.86 - Step 4: Simplify right side
94,120,895.52x = 10,186,286,028,328,016 - Step 5: Solve for x
x = 10,186,286,028,328,016/94,120,895.52 - Step 6: Final answer
x = 108,225,553.66
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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.