Finding the Fourth Proportional to 798,836,465.28, 1,102,395,820.80 and 446,412,457.92
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Solution
The fourth proportional to 798,836,465.28, 1,102,395,820.80 and 446,412,457.92 is: 616,050,029.45
Step by Step Solution
- Step 1: Write the proportion equation
798,836,465.28 : 1,102,395,820.80 = 446,412,457.92 : x - Step 2: Convert to fraction form
798,836,465.28/1,102,395,820.80 = 446,412,457.92/x - Step 3: Cross multiply
798,836,465.28x = 1,102,395,820.80 × 446,412,457.92 - Step 4: Simplify right side
798,836,465.28x = 492,123,227,964,063,872 - Step 5: Solve for x
x = 492,123,227,964,063,872/798,836,465.28 - Step 6: Final answer
x = 616,050,029.45
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.