Finding the Fourth Proportional to 99,432,364.80, 148,896,604.80 and 79,276,972.80
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Solution
The fourth proportional to 99,432,364.80, 148,896,604.80 and 79,276,972.80 is: 118,714,586.67
Step by Step Solution
- Step 1: Write the proportion equation
99,432,364.80 : 148,896,604.80 = 79,276,972.80 : x - Step 2: Convert to fraction form
99,432,364.80/148,896,604.80 = 79,276,972.80/x - Step 3: Cross multiply
99,432,364.80x = 148,896,604.80 × 79,276,972.80 - Step 4: Simplify right side
99,432,364.80x = 11,804,072,088,741,950 - Step 5: Solve for x
x = 11,804,072,088,741,950/99,432,364.80 - Step 6: Final answer
x = 118,714,586.67
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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.