Finding the Fourth Proportional to 1,391,775,997,048.10, 1,920,818,078,091.60 and 843,051,201,644.44
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Solution
The fourth proportional to 1,391,775,997,048.10, 1,920,818,078,091.60 and 843,051,201,644.44 is: 1,163,511,938,925.56
Step by Step Solution
- Step 1: Write the proportion equation
1,391,775,997,048.10 : 1,920,818,078,091.60 = 843,051,201,644.44 : x - Step 2: Convert to fraction form
1,391,775,997,048.10/1,920,818,078,091.60 = 843,051,201,644.44/x - Step 3: Cross multiply
1,391,775,997,048.10x = 1,920,818,078,091.60 × 843,051,201,644.44 - Step 4: Simplify right side
1,391,775,997,048.10x = 1,619,347,988,875,487,198,838,784 - Step 5: Solve for x
x = 1,619,347,988,875,487,198,838,784/1,391,775,997,048.10 - Step 6: Final answer
x = 1,163,511,938,925.56
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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.