Finding the Fourth Proportional to 205,138,518.80, 307,446,504.60 and 83,832,918.80
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Solution
The fourth proportional to 205,138,518.80, 307,446,504.60 and 83,832,918.80 is: 125,642,604.84
Step by Step Solution
- Step 1: Write the proportion equation
205,138,518.80 : 307,446,504.60 = 83,832,918.80 : x - Step 2: Convert to fraction form
205,138,518.80/307,446,504.60 = 83,832,918.80/x - Step 3: Cross multiply
205,138,518.80x = 307,446,504.60 × 83,832,918.80 - Step 4: Simplify right side
205,138,518.80x = 25,774,137,855,475,628 - Step 5: Solve for x
x = 25,774,137,855,475,628/205,138,518.80 - Step 6: Final answer
x = 125,642,604.84
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1.5x scale
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.