Finding the Fourth Proportional to 1,720,749,349.80, 2,581,120,087.56 and 737,538,360.12
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Solution
The fourth proportional to 1,720,749,349.80, 2,581,120,087.56 and 737,538,360.12 is: 1,106,305,852.66
Step by Step Solution
- Step 1: Write the proportion equation
1,720,749,349.80 : 2,581,120,087.56 = 737,538,360.12 : x - Step 2: Convert to fraction form
1,720,749,349.80/2,581,120,087.56 = 737,538,360.12/x - Step 3: Cross multiply
1,720,749,349.80x = 2,581,120,087.56 × 737,538,360.12 - Step 4: Simplify right side
1,720,749,349.80x = 1,903,675,076,651,793,152 - Step 5: Solve for x
x = 1,903,675,076,651,793,152/1,720,749,349.80 - Step 6: Final answer
x = 1,106,305,852.66
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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.