Finding the Fourth Proportional to 75,725,648.20, 113,420,510.70 and 65,647,952.20
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Solution
The fourth proportional to 75,725,648.20, 113,420,510.70 and 65,647,952.20 is: 98,326,319.31
Step by Step Solution
- Step 1: Write the proportion equation
75,725,648.20 : 113,420,510.70 = 65,647,952.20 : x - Step 2: Convert to fraction form
75,725,648.20/113,420,510.70 = 65,647,952.20/x - Step 3: Cross multiply
75,725,648.20x = 113,420,510.70 × 65,647,952.20 - Step 4: Simplify right side
75,725,648.20x = 7,445,824,264,933,189 - Step 5: Solve for x
x = 7,445,824,264,933,189/75,725,648.20 - Step 6: Final answer
x = 98,326,319.31
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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.