Finding the Fourth Proportional to 71,264,298.40, 106,896,447.60 and 53,124,445.60
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Solution
The fourth proportional to 71,264,298.40, 106,896,447.60 and 53,124,445.60 is: 79,686,668.40
Step by Step Solution
- Step 1: Write the proportion equation
71,264,298.40 : 106,896,447.60 = 53,124,445.60 : x - Step 2: Convert to fraction form
71,264,298.40/106,896,447.60 = 53,124,445.60/x - Step 3: Cross multiply
71,264,298.40x = 106,896,447.60 × 53,124,445.60 - Step 4: Simplify right side
71,264,298.40x = 5,678,814,515,359,450 - Step 5: Solve for x
x = 5,678,814,515,359,450/71,264,298.40 - Step 6: Final answer
x = 79,686,668.40
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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.