Finding the Fourth Proportional to 1,758,245,610.60, 2,637,368,415.90 and 448,145,130.60
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Solution
The fourth proportional to 1,758,245,610.60, 2,637,368,415.90 and 448,145,130.60 is: 672,217,695.90
Step by Step Solution
- Step 1: Write the proportion equation
1,758,245,610.60 : 2,637,368,415.90 = 448,145,130.60 : x - Step 2: Convert to fraction form
1,758,245,610.60/2,637,368,415.90 = 448,145,130.60/x - Step 3: Cross multiply
1,758,245,610.60x = 2,637,368,415.90 × 448,145,130.60 - Step 4: Simplify right side
1,758,245,610.60x = 1,181,923,813,183,820,800 - Step 5: Solve for x
x = 1,181,923,813,183,820,800/1,758,245,610.60 - Step 6: Final answer
x = 672,217,695.90
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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.