Finding the Fourth Proportional to 1,997,782,907.79, 2,756,753,612.10 and 1,193,850,865.65
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Solution
The fourth proportional to 1,997,782,907.79, 2,756,753,612.10 and 1,193,850,865.65 is: 1,647,402,564.79
Step by Step Solution
- Step 1: Write the proportion equation
1,997,782,907.79 : 2,756,753,612.10 = 1,193,850,865.65 : x - Step 2: Convert to fraction form
1,997,782,907.79/2,756,753,612.10 = 1,193,850,865.65/x - Step 3: Cross multiply
1,997,782,907.79x = 2,756,753,612.10 × 1,193,850,865.65 - Step 4: Simplify right side
1,997,782,907.79x = 3,291,152,686,189,349,376 - Step 5: Solve for x
x = 3,291,152,686,189,349,376/1,997,782,907.79 - Step 6: Final answer
x = 1,647,402,564.79
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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.