Finding the Fourth Proportional to 1,230,603,416.20, 1,845,905,124.30 and 1,187,605,246.60
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Solution
The fourth proportional to 1,230,603,416.20, 1,845,905,124.30 and 1,187,605,246.60 is: 1,781,407,869.90
Step by Step Solution
- Step 1: Write the proportion equation
1,230,603,416.20 : 1,845,905,124.30 = 1,187,605,246.60 : x - Step 2: Convert to fraction form
1,230,603,416.20/1,845,905,124.30 = 1,187,605,246.60/x - Step 3: Cross multiply
1,230,603,416.20x = 1,845,905,124.30 × 1,187,605,246.60 - Step 4: Simplify right side
1,230,603,416.20x = 2,192,206,610,344,504,832 - Step 5: Solve for x
x = 2,192,206,610,344,504,832/1,230,603,416.20 - Step 6: Final answer
x = 1,781,407,869.90
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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.