Finding the Fourth Proportional to 120,406,175.31, 166,174,305.77 and 67,497,173.03
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Solution
The fourth proportional to 120,406,175.31, 166,174,305.77 and 67,497,173.03 is: 93,153,825.71
Step by Step Solution
- Step 1: Write the proportion equation
120,406,175.31 : 166,174,305.77 = 67,497,173.03 : x - Step 2: Convert to fraction form
120,406,175.31/166,174,305.77 = 67,497,173.03/x - Step 3: Cross multiply
120,406,175.31x = 166,174,305.77 × 67,497,173.03 - Step 4: Simplify right side
120,406,175.31x = 11,216,295,869,035,690 - Step 5: Solve for x
x = 11,216,295,869,035,690/120,406,175.31 - Step 6: Final answer
x = 93,153,825.71
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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.