Finding the Fourth Proportional to 187,029,153.30, 280,543,729.95 and 77,818,027.80
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Solution
The fourth proportional to 187,029,153.30, 280,543,729.95 and 77,818,027.80 is: 116,727,041.70
Step by Step Solution
- Step 1: Write the proportion equation
187,029,153.30 : 280,543,729.95 = 77,818,027.80 : x - Step 2: Convert to fraction form
187,029,153.30/280,543,729.95 = 77,818,027.80/x - Step 3: Cross multiply
187,029,153.30x = 280,543,729.95 × 77,818,027.80 - Step 4: Simplify right side
187,029,153.30x = 21,831,359,776,364,792 - Step 5: Solve for x
x = 21,831,359,776,364,792/187,029,153.30 - Step 6: Final answer
x = 116,727,041.70
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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.