Finding the Fourth Proportional to 120,299,511.96, 166,008,881.16 and 65,294,187.48
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Solution
The fourth proportional to 120,299,511.96, 166,008,881.16 and 65,294,187.48 is: 90,103,565.95
Step by Step Solution
- Step 1: Write the proportion equation
120,299,511.96 : 166,008,881.16 = 65,294,187.48 : x - Step 2: Convert to fraction form
120,299,511.96/166,008,881.16 = 65,294,187.48/x - Step 3: Cross multiply
120,299,511.96x = 166,008,881.16 × 65,294,187.48 - Step 4: Simplify right side
120,299,511.96x = 10,839,415,009,806,080 - Step 5: Solve for x
x = 10,839,415,009,806,080/120,299,511.96 - Step 6: Final answer
x = 90,103,565.95
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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.