Finding the Fourth Proportional to 99,623,728.80, 149,463,586.80 and 48,507,415.20
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Solution
The fourth proportional to 99,623,728.80, 149,463,586.80 and 48,507,415.20 is: 72,774,753.06
Step by Step Solution
- Step 1: Write the proportion equation
99,623,728.80 : 149,463,586.80 = 48,507,415.20 : x - Step 2: Convert to fraction form
99,623,728.80/149,463,586.80 = 48,507,415.20/x - Step 3: Cross multiply
99,623,728.80x = 149,463,586.80 × 48,507,415.20 - Step 4: Simplify right side
99,623,728.80x = 7,250,092,262,188,840 - Step 5: Solve for x
x = 7,250,092,262,188,840/99,623,728.80 - Step 6: Final answer
x = 72,774,753.06
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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.