Finding the Fourth Proportional to 885,735,974.20, 1,328,603,961.30 and 880,634,140.60
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Solution
The fourth proportional to 885,735,974.20, 1,328,603,961.30 and 880,634,140.60 is: 1,320,951,210.90
Step by Step Solution
- Step 1: Write the proportion equation
885,735,974.20 : 1,328,603,961.30 = 880,634,140.60 : x - Step 2: Convert to fraction form
885,735,974.20/1,328,603,961.30 = 880,634,140.60/x - Step 3: Cross multiply
885,735,974.20x = 1,328,603,961.30 × 880,634,140.60 - Step 4: Simplify right side
885,735,974.20x = 1,170,014,007,657,181,184 - Step 5: Solve for x
x = 1,170,014,007,657,181,184/885,735,974.20 - Step 6: Final answer
x = 1,320,951,210.90
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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.