Finding the Fourth Proportional to 71,568,000.70, 107,352,001.05 and 66,749,602.30
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Solution
The fourth proportional to 71,568,000.70, 107,352,001.05 and 66,749,602.30 is: 100,124,403.45
Step by Step Solution
- Step 1: Write the proportion equation
71,568,000.70 : 107,352,001.05 = 66,749,602.30 : x - Step 2: Convert to fraction form
71,568,000.70/107,352,001.05 = 66,749,602.30/x - Step 3: Cross multiply
71,568,000.70x = 107,352,001.05 × 66,749,602.30 - Step 4: Simplify right side
71,568,000.70x = 7,165,703,376,196,682 - Step 5: Solve for x
x = 7,165,703,376,196,682/71,568,000.70 - Step 6: Final answer
x = 100,124,403.45
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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.