Finding the Fourth Proportional to 86,329,824.80, 129,494,737.20 and 67,056,231.20
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Solution
The fourth proportional to 86,329,824.80, 129,494,737.20 and 67,056,231.20 is: 100,584,346.80
Step by Step Solution
- Step 1: Write the proportion equation
86,329,824.80 : 129,494,737.20 = 67,056,231.20 : x - Step 2: Convert to fraction form
86,329,824.80/129,494,737.20 = 67,056,231.20/x - Step 3: Cross multiply
86,329,824.80x = 129,494,737.20 × 67,056,231.20 - Step 4: Simplify right side
86,329,824.80x = 8,683,429,036,866,441 - Step 5: Solve for x
x = 8,683,429,036,866,441/86,329,824.80 - Step 6: Final answer
x = 100,584,346.80
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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.