Finding the Fourth Proportional to 1,997,391,348.74, 2,997,270,642.09 and 1,112,817,104.66
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Solution
The fourth proportional to 1,997,391,348.74, 2,997,270,642.09 and 1,112,817,104.66 is: 1,669,885,092.84
Step by Step Solution
- Step 1: Write the proportion equation
1,997,391,348.74 : 2,997,270,642.09 = 1,112,817,104.66 : x - Step 2: Convert to fraction form
1,997,391,348.74/2,997,270,642.09 = 1,112,817,104.66/x - Step 3: Cross multiply
1,997,391,348.74x = 2,997,270,642.09 × 1,112,817,104.66 - Step 4: Simplify right side
1,997,391,348.74x = 3,335,414,037,824,734,720 - Step 5: Solve for x
x = 3,335,414,037,824,734,720/1,997,391,348.74 - Step 6: Final answer
x = 1,669,885,092.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.