Finding the Fourth Proportional to 66,435,717.80, 99,653,576.70 and 30,603,909.80
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Solution
The fourth proportional to 66,435,717.80, 99,653,576.70 and 30,603,909.80 is: 45,905,864.70
Step by Step Solution
- Step 1: Write the proportion equation
66,435,717.80 : 99,653,576.70 = 30,603,909.80 : x - Step 2: Convert to fraction form
66,435,717.80/99,653,576.70 = 30,603,909.80/x - Step 3: Cross multiply
66,435,717.80x = 99,653,576.70 × 30,603,909.80 - Step 4: Simplify right side
66,435,717.80x = 3,049,789,072,574,182 - Step 5: Solve for x
x = 3,049,789,072,574,182/66,435,717.80 - Step 6: Final answer
x = 45,905,864.70
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1.5x scale
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.