Finding the Fourth Proportional to 1,174,757,698.12, 1,621,211,879.22 and 646,170,868.12
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Solution
The fourth proportional to 1,174,757,698.12, 1,621,211,879.22 and 646,170,868.12 is: 891,741,240.84
Step by Step Solution
- Step 1: Write the proportion equation
1,174,757,698.12 : 1,621,211,879.22 = 646,170,868.12 : x - Step 2: Convert to fraction form
1,174,757,698.12/1,621,211,879.22 = 646,170,868.12/x - Step 3: Cross multiply
1,174,757,698.12x = 1,621,211,879.22 × 646,170,868.12 - Step 4: Simplify right side
1,174,757,698.12x = 1,047,579,887,402,044,032 - Step 5: Solve for x
x = 1,047,579,887,402,044,032/1,174,757,698.12 - Step 6: Final answer
x = 891,741,240.84
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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.