Finding the Fourth Proportional to 27,127,890.48, 40,691,281.68 and 7,958,223.12
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Solution
The fourth proportional to 27,127,890.48, 40,691,281.68 and 7,958,223.12 is: 11,937,172.15
Step by Step Solution
- Step 1: Write the proportion equation
27,127,890.48 : 40,691,281.68 = 7,958,223.12 : x - Step 2: Convert to fraction form
27,127,890.48/40,691,281.68 = 7,958,223.12/x - Step 3: Cross multiply
27,127,890.48x = 40,691,281.68 × 7,958,223.12 - Step 4: Simplify right side
27,127,890.48x = 323,830,298,648,208.44 - Step 5: Solve for x
x = 323,830,298,648,208.44/27,127,890.48 - Step 6: Final answer
x = 11,937,172.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.