Finding the Fourth Proportional to 170,624,076.80, 255,936,115.20 and 74,885,964.80
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Solution
The fourth proportional to 170,624,076.80, 255,936,115.20 and 74,885,964.80 is: 112,328,947.20
Step by Step Solution
- Step 1: Write the proportion equation
170,624,076.80 : 255,936,115.20 = 74,885,964.80 : x - Step 2: Convert to fraction form
170,624,076.80/255,936,115.20 = 74,885,964.80/x - Step 3: Cross multiply
170,624,076.80x = 255,936,115.20 × 74,885,964.80 - Step 4: Simplify right side
170,624,076.80x = 19,166,022,913,915,944 - Step 5: Solve for x
x = 19,166,022,913,915,944/170,624,076.80 - Step 6: Final answer
x = 112,328,947.20
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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.