Finding the Fourth Proportional to 7,789,715.80, 11,684,573.70 and 4,430,483.80
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Solution
The fourth proportional to 7,789,715.80, 11,684,573.70 and 4,430,483.80 is: 6,645,725.70
Step by Step Solution
- Step 1: Write the proportion equation
7,789,715.80 : 11,684,573.70 = 4,430,483.80 : x - Step 2: Convert to fraction form
7,789,715.80/11,684,573.70 = 4,430,483.80/x - Step 3: Cross multiply
7,789,715.80x = 11,684,573.70 × 4,430,483.80 - Step 4: Simplify right side
7,789,715.80x = 51,768,314,487,756.05 - Step 5: Solve for x
x = 51,768,314,487,756.05/7,789,715.80 - Step 6: Final answer
x = 6,645,725.70
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Similar ratio
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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.