Finding the Fourth Proportional to 69,987,132.80, 104,980,699.20 and 65,735,604.80
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Solution
The fourth proportional to 69,987,132.80, 104,980,699.20 and 65,735,604.80 is: 98,603,407.20
Step by Step Solution
- Step 1: Write the proportion equation
69,987,132.80 : 104,980,699.20 = 65,735,604.80 : x - Step 2: Convert to fraction form
69,987,132.80/104,980,699.20 = 65,735,604.80/x - Step 3: Cross multiply
69,987,132.80x = 104,980,699.20 × 65,735,604.80 - Step 4: Simplify right side
69,987,132.80x = 6,900,969,754,238,876 - Step 5: Solve for x
x = 6,900,969,754,238,876/69,987,132.80 - Step 6: Final answer
x = 98,603,407.20
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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.