Finding the Fourth Proportional to 42,624,720.82, 63,921,211.80 and 15,323,563.36
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Solution
The fourth proportional to 42,624,720.82, 63,921,211.80 and 15,323,563.36 is: 22,979,639.99
Step by Step Solution
- Step 1: Write the proportion equation
42,624,720.82 : 63,921,211.80 = 15,323,563.36 : x - Step 2: Convert to fraction form
42,624,720.82/63,921,211.80 = 15,323,563.36/x - Step 3: Cross multiply
42,624,720.82x = 63,921,211.80 × 15,323,563.36 - Step 4: Simplify right side
42,624,720.82x = 979,500,739,065,279.62 - Step 5: Solve for x
x = 979,500,739,065,279.62/42,624,720.82 - Step 6: Final answer
x = 22,979,639.99
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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.