Finding the Fourth Proportional to 1,580,048,349.75, 2,179,640,029.37 and 977,026,183.65
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Solution
The fourth proportional to 1,580,048,349.75, 2,179,640,029.37 and 977,026,183.65 is: 1,347,784,945.92
Step by Step Solution
- Step 1: Write the proportion equation
1,580,048,349.75 : 2,179,640,029.37 = 977,026,183.65 : x - Step 2: Convert to fraction form
1,580,048,349.75/2,179,640,029.37 = 977,026,183.65/x - Step 3: Cross multiply
1,580,048,349.75x = 2,179,640,029.37 × 977,026,183.65 - Step 4: Simplify right side
1,580,048,349.75x = 2,129,565,379,621,259,520 - Step 5: Solve for x
x = 2,129,565,379,621,259,520/1,580,048,349.75 - Step 6: Final answer
x = 1,347,784,945.92
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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.