Finding the Fourth Proportional to 115,172,319.05, 158,091,781.15 and 101,827,245.05
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Solution
The fourth proportional to 115,172,319.05, 158,091,781.15 and 101,827,245.05 is: 139,773,607.68
Step by Step Solution
- Step 1: Write the proportion equation
115,172,319.05 : 158,091,781.15 = 101,827,245.05 : x - Step 2: Convert to fraction form
115,172,319.05/158,091,781.15 = 101,827,245.05/x - Step 3: Cross multiply
115,172,319.05x = 158,091,781.15 × 101,827,245.05 - Step 4: Simplify right side
115,172,319.05x = 16,098,050,539,042,886 - Step 5: Solve for x
x = 16,098,050,539,042,886/115,172,319.05 - Step 6: Final answer
x = 139,773,607.68
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.