Finding the Fourth Proportional to 97,026,640.20, 145,539,960.30 and 48,511,981.80
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Solution
The fourth proportional to 97,026,640.20, 145,539,960.30 and 48,511,981.80 is: 72,767,972.70
Step by Step Solution
- Step 1: Write the proportion equation
97,026,640.20 : 145,539,960.30 = 48,511,981.80 : x - Step 2: Convert to fraction form
97,026,640.20/145,539,960.30 = 48,511,981.80/x - Step 3: Cross multiply
97,026,640.20x = 145,539,960.30 × 48,511,981.80 - Step 4: Simplify right side
97,026,640.20x = 7,060,431,905,246,323 - Step 5: Solve for x
x = 7,060,431,905,246,323/97,026,640.20 - Step 6: Final answer
x = 72,767,972.70
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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.