Finding the Fourth Proportional to 73,793,313.80, 110,689,970.70 and 69,612,936.20
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Solution
The fourth proportional to 73,793,313.80, 110,689,970.70 and 69,612,936.20 is: 104,419,404.30
Step by Step Solution
- Step 1: Write the proportion equation
73,793,313.80 : 110,689,970.70 = 69,612,936.20 : x - Step 2: Convert to fraction form
73,793,313.80/110,689,970.70 = 69,612,936.20/x - Step 3: Cross multiply
73,793,313.80x = 110,689,970.70 × 69,612,936.20 - Step 4: Simplify right side
73,793,313.80x = 7,705,453,868,318,970 - Step 5: Solve for x
x = 7,705,453,868,318,970/73,793,313.80 - Step 6: Final answer
x = 104,419,404.30
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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.