Finding the Fourth Proportional to 103,373,599.56, 142,656,523.98 and 56,965,514.18
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Solution
The fourth proportional to 103,373,599.56, 142,656,523.98 and 56,965,514.18 is: 78,612,936.71
Step by Step Solution
- Step 1: Write the proportion equation
103,373,599.56 : 142,656,523.98 = 56,965,514.18 : x - Step 2: Convert to fraction form
103,373,599.56/142,656,523.98 = 56,965,514.18/x - Step 3: Cross multiply
103,373,599.56x = 142,656,523.98 × 56,965,514.18 - Step 4: Simplify right side
103,373,599.56x = 8,126,502,239,652,199 - Step 5: Solve for x
x = 8,126,502,239,652,199/103,373,599.56 - Step 6: Final answer
x = 78,612,936.71
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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.