Finding the Fourth Proportional to 98,901,012.60, 148,351,518.90 and 50,528,071.80
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Solution
The fourth proportional to 98,901,012.60, 148,351,518.90 and 50,528,071.80 is: 75,792,107.70
Step by Step Solution
- Step 1: Write the proportion equation
98,901,012.60 : 148,351,518.90 = 50,528,071.80 : x - Step 2: Convert to fraction form
98,901,012.60/148,351,518.90 = 50,528,071.80/x - Step 3: Cross multiply
98,901,012.60x = 148,351,518.90 × 50,528,071.80 - Step 4: Simplify right side
98,901,012.60x = 7,495,916,198,618,257 - Step 5: Solve for x
x = 7,495,916,198,618,257/98,901,012.60 - Step 6: Final answer
x = 75,792,107.70
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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.