Finding the Fourth Proportional to 1,391,775,997,047.10, 1,920,818,078,090.20 and 843,051,201,643.44
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Solution
The fourth proportional to 1,391,775,997,047.10, 1,920,818,078,090.20 and 843,051,201,643.44 is: 1,163,511,938,924.17
Step by Step Solution
- Step 1: Write the proportion equation
1,391,775,997,047.10 : 1,920,818,078,090.20 = 843,051,201,643.44 : x - Step 2: Convert to fraction form
1,391,775,997,047.10/1,920,818,078,090.20 = 843,051,201,643.44/x - Step 3: Cross multiply
1,391,775,997,047.10x = 1,920,818,078,090.20 × 843,051,201,643.44 - Step 4: Simplify right side
1,391,775,997,047.10x = 1,619,347,988,872,385,964,015,616 - Step 5: Solve for x
x = 1,619,347,988,872,385,964,015,616/1,391,775,997,047.10 - Step 6: Final answer
x = 1,163,511,938,924.17
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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.