Finding the Fourth Proportional to 1,698,571,218.96, 2,546,672,314.68 and 752,654,836.80
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Solution
The fourth proportional to 1,698,571,218.96, 2,546,672,314.68 and 752,654,836.80 is: 1,128,457,384.65
Step by Step Solution
- Step 1: Write the proportion equation
1,698,571,218.96 : 2,546,672,314.68 = 752,654,836.80 : x - Step 2: Convert to fraction form
1,698,571,218.96/2,546,672,314.68 = 752,654,836.80/x - Step 3: Cross multiply
1,698,571,218.96x = 2,546,672,314.68 × 752,654,836.80 - Step 4: Simplify right side
1,698,571,218.96x = 1,916,765,235,388,553,472 - Step 5: Solve for x
x = 1,916,765,235,388,553,472/1,698,571,218.96 - Step 6: Final answer
x = 1,128,457,384.65
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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.