Finding the Fourth Proportional to 98,248,935.80, 147,373,403.70 and 68,015,847.80
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Solution
The fourth proportional to 98,248,935.80, 147,373,403.70 and 68,015,847.80 is: 102,023,771.70
Step by Step Solution
- Step 1: Write the proportion equation
98,248,935.80 : 147,373,403.70 = 68,015,847.80 : x - Step 2: Convert to fraction form
98,248,935.80/147,373,403.70 = 68,015,847.80/x - Step 3: Cross multiply
98,248,935.80x = 147,373,403.70 × 68,015,847.80 - Step 4: Simplify right side
98,248,935.80x = 10,023,726,995,827,156 - Step 5: Solve for x
x = 10,023,726,995,827,156/98,248,935.80 - Step 6: Final answer
x = 102,023,771.70
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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.