Finding the Fourth Proportional to 1,692,803,574.90, 2,538,199,451.97 and 643,618,579.23
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Solution
The fourth proportional to 1,692,803,574.90, 2,538,199,451.97 and 643,618,579.23 is: 965,045,413.01
Step by Step Solution
- Step 1: Write the proportion equation
1,692,803,574.90 : 2,538,199,451.97 = 643,618,579.23 : x - Step 2: Convert to fraction form
1,692,803,574.90/2,538,199,451.97 = 643,618,579.23/x - Step 3: Cross multiply
1,692,803,574.90x = 2,538,199,451.97 × 643,618,579.23 - Step 4: Simplify right side
1,692,803,574.90x = 1,633,632,325,079,296,000 - Step 5: Solve for x
x = 1,633,632,325,079,296,000/1,692,803,574.90 - Step 6: Final answer
x = 965,045,413.01
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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.