Finding the Fourth Proportional to 7,430,178.30, 10,254,766.85 and 4,531,250.70
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Solution
The fourth proportional to 7,430,178.30, 10,254,766.85 and 4,531,250.70 is: 6,253,809.47
Step by Step Solution
- Step 1: Write the proportion equation
7,430,178.30 : 10,254,766.85 = 4,531,250.70 : x - Step 2: Convert to fraction form
7,430,178.30/10,254,766.85 = 4,531,250.70/x - Step 3: Cross multiply
7,430,178.30x = 10,254,766.85 × 4,531,250.70 - Step 4: Simplify right side
7,430,178.30x = 46,466,919,444,743.05 - Step 5: Solve for x
x = 46,466,919,444,743.05/7,430,178.30 - Step 6: Final answer
x = 6,253,809.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.