Finding the Fourth Proportional to 798,457,849.20, 1,197,686,773.80 and 435,660,793.20
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Solution
The fourth proportional to 798,457,849.20, 1,197,686,773.80 and 435,660,793.20 is: 653,491,189.80
Step by Step Solution
- Step 1: Write the proportion equation
798,457,849.20 : 1,197,686,773.80 = 435,660,793.20 : x - Step 2: Convert to fraction form
798,457,849.20/1,197,686,773.80 = 435,660,793.20/x - Step 3: Cross multiply
798,457,849.20x = 1,197,686,773.80 × 435,660,793.20 - Step 4: Simplify right side
798,457,849.20x = 521,785,169,878,856,960 - Step 5: Solve for x
x = 521,785,169,878,856,960/798,457,849.20 - Step 6: Final answer
x = 653,491,189.80
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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.