Finding the Fourth Proportional to 1,230,603,422.20, 1,845,905,133.30 and 1,187,605,252.60
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Solution
The fourth proportional to 1,230,603,422.20, 1,845,905,133.30 and 1,187,605,252.60 is: 1,781,407,878.90
Step by Step Solution
- Step 1: Write the proportion equation
1,230,603,422.20 : 1,845,905,133.30 = 1,187,605,252.60 : x - Step 2: Convert to fraction form
1,230,603,422.20/1,845,905,133.30 = 1,187,605,252.60/x - Step 3: Cross multiply
1,230,603,422.20x = 1,845,905,133.30 × 1,187,605,252.60 - Step 4: Simplify right side
1,230,603,422.20x = 2,192,206,632,108,382,976 - Step 5: Solve for x
x = 2,192,206,632,108,382,976/1,230,603,422.20 - Step 6: Final answer
x = 1,781,407,878.90
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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.