Finding the Fourth Proportional to 665,939,166.80, 998,908,750.20 and 654,460,041.20
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Solution
The fourth proportional to 665,939,166.80, 998,908,750.20 and 654,460,041.20 is: 981,690,061.80
Step by Step Solution
- Step 1: Write the proportion equation
665,939,166.80 : 998,908,750.20 = 654,460,041.20 : x - Step 2: Convert to fraction form
665,939,166.80/998,908,750.20 = 654,460,041.20/x - Step 3: Cross multiply
665,939,166.80x = 998,908,750.20 × 654,460,041.20 - Step 4: Simplify right side
665,939,166.80x = 653,745,861,810,932,608 - Step 5: Solve for x
x = 653,745,861,810,932,608/665,939,166.80 - Step 6: Final answer
x = 981,690,061.80
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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.