Finding the Fourth Proportional to 205,126,862.30, 307,690,293.45 and 61,519,694.30
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Solution
The fourth proportional to 205,126,862.30, 307,690,293.45 and 61,519,694.30 is: 92,279,541.45
Step by Step Solution
- Step 1: Write the proportion equation
205,126,862.30 : 307,690,293.45 = 61,519,694.30 : x - Step 2: Convert to fraction form
205,126,862.30/307,690,293.45 = 61,519,694.30/x - Step 3: Cross multiply
205,126,862.30x = 307,690,293.45 × 61,519,694.30 - Step 4: Simplify right side
205,126,862.30x = 18,929,012,792,121,292 - Step 5: Solve for x
x = 18,929,012,792,121,292/205,126,862.30 - Step 6: Final answer
x = 92,279,541.45
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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.