Finding the Fourth Proportional to 84,515,567.13, 116,740,888.64 and 69,890,310.81
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Solution
The fourth proportional to 84,515,567.13, 116,740,888.64 and 69,890,310.81 is: 96,539,102.42
Step by Step Solution
- Step 1: Write the proportion equation
84,515,567.13 : 116,740,888.64 = 69,890,310.81 : x - Step 2: Convert to fraction form
84,515,567.13/116,740,888.64 = 69,890,310.81/x - Step 3: Cross multiply
84,515,567.13x = 116,740,888.64 × 69,890,310.81 - Step 4: Simplify right side
84,515,567.13x = 8,159,056,991,197,836 - Step 5: Solve for x
x = 8,159,056,991,197,836/84,515,567.13 - Step 6: Final answer
x = 96,539,102.42
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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.